test freebsd

Adds a per-instance uint64 hash to DefaultServer to detect identical merged host DNS configs (including extra domains). applyHostConfig computes and compares the hash, skips applying if unchanged, treats hash errors as a fail-safe (proceed to apply), and updates the stored hash only after successful hashing and apply.

.githooks/pre-push

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+echo "Running pre-push hook..."
+if ! make lint; then
+    echo ""
+    echo "Hint: To push without verification, run:"
+    echo "  git push --no-verify"
+    exit 1
+fi
+
+echo "All checks passed!"

.github/workflows/golang-test-darwin.yml

@@ -15,13 +15,14 @@ jobs:
     name: "Client / Unit"
     runs-on: macos-latest
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
-      - name: Checkout code
-        uses: actions/checkout@v4
 
       - name: Cache Go modules
         uses: actions/cache@v4

.github/workflows/golang-test-freebsd.yml

@@ -25,7 +25,7 @@ jobs:
           release: "14.2"
           prepare: |
             pkg install -y curl pkgconf xorg
-            GO_TARBALL="go1.23.12.freebsd-amd64.tar.gz"
+            GO_TARBALL="go1.24.10.freebsd-amd64.tar.gz"
             GO_URL="https://go.dev/dl/$GO_TARBALL"
             curl -vLO "$GO_URL"
             tar -C /usr/local -vxzf "$GO_TARBALL"            

.github/workflows/golang-test-linux.yml

@@ -30,7 +30,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
 
       - name: Get Go environment
@@ -106,15 +106,15 @@ jobs:
         arch: [ '386','amd64' ]
     runs-on: ubuntu-22.04
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
 
-      - name: Checkout code
-        uses: actions/checkout@v4
-
       - name: Get Go environment
         run: |
           echo "cache=$(go env GOCACHE)" >> $GITHUB_ENV
@@ -151,15 +151,15 @@ jobs:
     needs: [ build-cache ]
     runs-on: ubuntu-22.04
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
 
-      - name: Checkout code
-        uses: actions/checkout@v4
-
       - name: Get Go environment
         id: go-env
         run: |
@@ -200,7 +200,7 @@ jobs:
             -e GOCACHE=${CONTAINER_GOCACHE} \
             -e GOMODCACHE=${CONTAINER_GOMODCACHE} \
             -e CONTAINER=${CONTAINER} \
-            golang:1.23-alpine \
+            golang:1.24-alpine \
             sh -c ' \
               apk update; apk add --no-cache \
                 ca-certificates iptables ip6tables dbus dbus-dev libpcap-dev build-base; \
@@ -220,15 +220,15 @@ jobs:
             raceFlag: "-race"
     runs-on: ubuntu-22.04
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
 
-      - name: Checkout code
-        uses: actions/checkout@v4
-
       - name: Install dependencies
         if: steps.cache.outputs.cache-hit != 'true'
         run: sudo apt update && sudo apt install -y gcc-multilib g++-multilib libc6-dev-i386
@@ -270,15 +270,15 @@ jobs:
         arch: [ '386','amd64' ]
     runs-on: ubuntu-22.04
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
 
-      - name: Checkout code
-        uses: actions/checkout@v4
-
       - name: Install dependencies
         if: steps.cache.outputs.cache-hit != 'true'
         run: sudo apt update && sudo apt install -y gcc-multilib g++-multilib libc6-dev-i386
@@ -321,15 +321,15 @@ jobs:
         store: [ 'sqlite', 'postgres', 'mysql' ]
     runs-on: ubuntu-22.04
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
 
-      - name: Checkout code
-        uses: actions/checkout@v4
-
       - name: Get Go environment
         run: |
           echo "cache=$(go env GOCACHE)" >> $GITHUB_ENV
@@ -408,15 +408,16 @@ jobs:
             -v $PWD/prometheus.yml:/etc/prometheus/prometheus.yml \
             -p 9090:9090 \
             prom/prometheus
-      - name: Install Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: "1.23.x"
-          cache: false
 
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: "go.mod"
+          cache: false
+
       - name: Get Go environment
         run: |
           echo "cache=$(go env GOCACHE)" >> $GITHUB_ENV
@@ -497,15 +498,15 @@ jobs:
             -p 9090:9090 \
             prom/prometheus
 
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
 
-      - name: Checkout code
-        uses: actions/checkout@v4
-
       - name: Get Go environment
         run: |
           echo "cache=$(go env GOCACHE)" >> $GITHUB_ENV
@@ -561,15 +562,15 @@ jobs:
         store: [ 'sqlite', 'postgres']
     runs-on: ubuntu-22.04
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
 
-      - name: Checkout code
-        uses: actions/checkout@v4
-
       - name: Get Go environment
         run: |
           echo "cache=$(go env GOCACHE)" >> $GITHUB_ENV

.github/workflows/golang-test-windows.yml

@@ -24,7 +24,7 @@ jobs:
         uses: actions/setup-go@v5
         id: go
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
 
       - name: Get Go environment

.github/workflows/golangci-lint.yml

@@ -46,7 +46,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
           cache: false
       - name: Install dependencies
         if: matrix.os == 'ubuntu-latest'

.github/workflows/mobile-build-validation.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
       - name: Setup Android SDK
         uses: android-actions/setup-android@v3
         with:
@@ -39,7 +39,7 @@ jobs:
       - name: Setup NDK
         run: /usr/local/lib/android/sdk/cmdline-tools/7.0/bin/sdkmanager --install "ndk;23.1.7779620"
       - name: install gomobile
-        run: go install golang.org/x/mobile/cmd/gomobile@v0.0.0-20240404231514-09dbf07665ed
+        run: go install golang.org/x/mobile/cmd/gomobile@v0.0.0-20251113184115-a159579294ab
       - name: gomobile init
         run: gomobile init
       - name: build android netbird lib
@@ -56,9 +56,9 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
       - name: install gomobile
-        run: go install golang.org/x/mobile/cmd/gomobile@v0.0.0-20240404231514-09dbf07665ed
+        run: go install golang.org/x/mobile/cmd/gomobile@v0.0.0-20251113184115-a159579294ab
       - name: gomobile init
         run: gomobile init
       - name: build iOS netbird lib

.github/workflows/release.yml

@@ -9,7 +9,7 @@ on:
   pull_request:
 
 env:
-  SIGN_PIPE_VER: "v0.0.23"
+  SIGN_PIPE_VER: "v0.1.0"
   GORELEASER_VER: "v2.3.2"
   PRODUCT_NAME: "NetBird"
   COPYRIGHT: "NetBird GmbH"
@@ -19,8 +19,102 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  release:
+  release_freebsd_port:
+    name: "FreeBSD Port / Build & Test"
     runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Generate FreeBSD port diff
+        run: bash release_files/freebsd-port-diff.sh
+
+      - name: Generate FreeBSD port issue body
+        run: bash release_files/freebsd-port-issue-body.sh
+
+      - name: Check if diff was generated
+        id: check_diff
+        run: |
+          if ls netbird-*.diff 1> /dev/null 2>&1; then
+            echo "diff_exists=true" >> $GITHUB_OUTPUT
+          else
+            echo "diff_exists=false" >> $GITHUB_OUTPUT
+            echo "No diff file generated (port may already be up to date)"
+          fi
+
+      - name: Extract version
+        if: steps.check_diff.outputs.diff_exists == 'true'
+        id: version
+        run: |
+          VERSION=$(ls netbird-*.diff | sed 's/netbird-\(.*\)\.diff/\1/')
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "Generated files for version: $VERSION"
+          cat netbird-*.diff
+
+      - name: Test FreeBSD port
+        if: steps.check_diff.outputs.diff_exists == 'true'
+        uses: vmactions/freebsd-vm@v1
+        with:
+          usesh: true
+          copyback: false
+          release: "15.0"
+          prepare: |
+            # Install required packages
+            pkg install -y git curl portlint go
+
+            # Install Go for building
+            GO_TARBALL="go1.24.10.freebsd-amd64.tar.gz"
+            GO_URL="https://go.dev/dl/$GO_TARBALL"
+            curl -LO "$GO_URL"
+            tar -C /usr/local -xzf "$GO_TARBALL"
+
+            # Clone ports tree (shallow, only what we need)
+            git clone --depth 1 --filter=blob:none https://git.FreeBSD.org/ports.git /usr/ports
+            cd /usr/ports
+
+          run: |
+            set -e -x
+            export PATH=$PATH:/usr/local/go/bin
+
+            # Find the diff file
+            echo "Finding diff file..."
+            DIFF_FILE=$(find $PWD -name "netbird-*.diff" -type f 2>/dev/null | head -1)
+            echo "Found: $DIFF_FILE"
+
+            if [[ -z "$DIFF_FILE" ]]; then
+              echo "ERROR: Could not find diff file"
+              find ~ -name "*.diff" -type f 2>/dev/null || true
+              exit 1
+            fi
+
+            # Apply the generated diff from /usr/ports (diff has a/security/netbird/... paths)
+            cd /usr/ports
+            patch -p1 -V none < "$DIFF_FILE"
+
+            # Show patched Makefile
+            version=$(cat security/netbird/Makefile | grep -E '^DISTVERSION=' | awk '{print $NF}')
+            
+            cd /usr/ports/security/netbird
+            export BATCH=yes
+            make package
+            pkg add ./work/pkg/netbird-*.pkg
+            
+            netbird version | grep "$version"
+
+            echo "FreeBSD port test completed successfully!"
+
+      - name: Upload FreeBSD port files
+        if: steps.check_diff.outputs.diff_exists == 'true'
+        uses: actions/upload-artifact@v4
+        with:
+          name: freebsd-port-files
+          path: |
+            ./netbird-*-issue.txt
+            ./netbird-*.diff
+          retention-days: 30
+
+  release:
+    runs-on: ubuntu-latest-m
     env:
       flags: ""
     steps:
@@ -40,7 +134,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23"
+          go-version-file: "go.mod"
           cache: false
       - name: Cache Go modules
         uses: actions/cache@v4
@@ -136,7 +230,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23"
+          go-version-file: "go.mod"
           cache: false
       - name: Cache Go modules
         uses: actions/cache@v4
@@ -200,7 +294,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23"
+          go-version-file: "go.mod"
           cache: false
       - name: Cache Go modules
         uses: actions/cache@v4

.github/workflows/test-infrastructure-files.yml

@@ -67,10 +67,13 @@ jobs:
       - name: Install curl
         run: sudo apt-get install -y curl
 
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
 
       - name: Cache Go modules
         uses: actions/cache@v4
@@ -80,9 +83,6 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-go-
 
-      - name: Checkout code
-        uses: actions/checkout@v4
-
       - name: Setup MySQL privileges
         if: matrix.store == 'mysql'
         run: |

.github/workflows/wasm-build-validation.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
       - name: Install dependencies
         run: sudo apt update && sudo apt install -y -q libgtk-3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev libpcap-dev
       - name: Install golangci-lint
@@ -45,7 +45,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.23.x"
+          go-version-file: "go.mod"
       - name: Build Wasm client
         run: GOOS=js GOARCH=wasm go build -o netbird.wasm ./client/wasm/cmd
         env:
@@ -60,8 +60,8 @@ jobs:
 
           echo "Size: ${SIZE} bytes (${SIZE_MB} MB)"
 
-          if [ ${SIZE} -gt 52428800 ]; then
-            echo "Wasm binary size (${SIZE_MB}MB) exceeds 50MB limit!"
+          if [ ${SIZE} -gt 57671680 ]; then
+            echo "Wasm binary size (${SIZE_MB}MB) exceeds 55MB limit!"
             exit 1
           fi
 

CONTRIBUTING.md

@@ -136,6 +136,14 @@ checked out and set up:
    go mod tidy
    ```
 
+6. Configure Git hooks for automatic linting:
+
+   ```bash
+   make setup-hooks
+   ```
+
+   This will configure Git to run linting automatically before each push, helping catch issues early.
+
 ### Dev Container Support
 
 If you prefer using a dev container for development, NetBird now includes support for dev containers. 

Makefile

@@ -0,0 +1,27 @@
+.PHONY: lint lint-all lint-install setup-hooks
+GOLANGCI_LINT := $(shell pwd)/bin/golangci-lint
+
+# Install golangci-lint locally if needed
+$(GOLANGCI_LINT):
+	@echo "Installing golangci-lint..."
+	@mkdir -p ./bin
+	@GOBIN=$(shell pwd)/bin go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
+
+# Lint only changed files (fast, for pre-push)
+lint: $(GOLANGCI_LINT)
+	@echo "Running lint on changed files..."
+	@$(GOLANGCI_LINT) run --new-from-rev=origin/main --timeout=2m
+
+# Lint entire codebase (slow, matches CI)
+lint-all: $(GOLANGCI_LINT)
+	@echo "Running lint on all files..."
+	@$(GOLANGCI_LINT) run --timeout=12m
+
+# Just install the linter
+lint-install: $(GOLANGCI_LINT)
+
+# Setup git hooks for all developers
+setup-hooks:
+	@git config core.hooksPath .githooks
+	@chmod +x .githooks/pre-push
+	@echo "✅ Git hooks configured! Pre-push will now run 'make lint'"

README.md

@@ -1,4 +1,3 @@
-
 <div align="center">
 <br/>
   <br/>
@@ -113,7 +112,7 @@ export NETBIRD_DOMAIN=netbird.example.com; curl -fsSL https://github.com/netbird
 [Coturn](https://github.com/coturn/coturn) is the one that has been successfully used for STUN and TURN in NetBird setups.
 
 <p float="left" align="middle">
-  <img src="https://docs.netbird.io/docs-static/img/architecture/high-level-dia.png" width="700"/>
+  <img src="https://docs.netbird.io/docs-static/img/about-netbird/high-level-dia.png" width="700"/>
 </p>
 
 See a complete [architecture overview](https://docs.netbird.io/about-netbird/how-netbird-works#architecture) for details.

client/android/client.go

@@ -4,10 +4,13 @@ package android
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"slices"
 	"sync"
 
+	"golang.org/x/exp/maps"
+
 	log "github.com/sirupsen/logrus"
 
 	"github.com/netbirdio/netbird/client/iface/device"
@@ -16,10 +19,13 @@ import (
 	"github.com/netbirdio/netbird/client/internal/listener"
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/internal/profilemanager"
+	"github.com/netbirdio/netbird/client/internal/routemanager"
 	"github.com/netbirdio/netbird/client/internal/stdnet"
 	"github.com/netbirdio/netbird/client/net"
 	"github.com/netbirdio/netbird/client/system"
 	"github.com/netbirdio/netbird/formatter"
+	"github.com/netbirdio/netbird/route"
+	"github.com/netbirdio/netbird/shared/management/domain"
 )
 
 // ConnectionListener export internal Listener for mobile
@@ -53,7 +59,6 @@ func init() {
 
 // Client struct manage the life circle of background service
 type Client struct {
-	cfgFile               string
 	tunAdapter            device.TunAdapter
 	iFaceDiscover         IFaceDiscover
 	recorder              *peer.Status
@@ -67,12 +72,11 @@ type Client struct {
 }
 
 // NewClient instantiate a new Client
-func NewClient(cfgFile string, androidSDKVersion int, deviceName string, uiVersion string, tunAdapter TunAdapter, iFaceDiscover IFaceDiscover, networkChangeListener NetworkChangeListener) *Client {
+func NewClient(androidSDKVersion int, deviceName string, uiVersion string, tunAdapter TunAdapter, iFaceDiscover IFaceDiscover, networkChangeListener NetworkChangeListener) *Client {
 	execWorkaround(androidSDKVersion)
 
 	net.SetAndroidProtectSocketFn(tunAdapter.ProtectSocket)
 	return &Client{
-		cfgFile:               cfgFile,
 		deviceName:            deviceName,
 		uiVersion:             uiVersion,
 		tunAdapter:            tunAdapter,
@@ -84,10 +88,16 @@ func NewClient(cfgFile string, androidSDKVersion int, deviceName string, uiVersi
 }
 
 // Run start the internal client. It is a blocker function
-func (c *Client) Run(urlOpener URLOpener, dns *DNSList, dnsReadyListener DnsReadyListener, envList *EnvList) error {
+func (c *Client) Run(platformFiles PlatformFiles, urlOpener URLOpener, isAndroidTV bool, dns *DNSList, dnsReadyListener DnsReadyListener, envList *EnvList) error {
 	exportEnvList(envList)
+
+	cfgFile := platformFiles.ConfigurationFilePath()
+	stateFile := platformFiles.StateFilePath()
+
+	log.Infof("Starting client with config: %s, state: %s", cfgFile, stateFile)
+
 	cfg, err := profilemanager.UpdateOrCreateConfig(profilemanager.ConfigInput{
-		ConfigPath: c.cfgFile,
+		ConfigPath: cfgFile,
 	})
 	if err != nil {
 		return err
@@ -107,23 +117,29 @@ func (c *Client) Run(urlOpener URLOpener, dns *DNSList, dnsReadyListener DnsRead
 	c.ctxCancelLock.Unlock()
 
 	auth := NewAuthWithConfig(ctx, cfg)
-	err = auth.login(urlOpener)
+	err = auth.login(urlOpener, isAndroidTV)
 	if err != nil {
 		return err
 	}
 
 	// todo do not throw error in case of cancelled context
 	ctx = internal.CtxInitState(ctx)
-	c.connectClient = internal.NewConnectClient(ctx, cfg, c.recorder)
-	return c.connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, slices.Clone(dns.items), dnsReadyListener)
+	c.connectClient = internal.NewConnectClient(ctx, cfg, c.recorder, false)
+	return c.connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, slices.Clone(dns.items), dnsReadyListener, stateFile)
 }
 
 // RunWithoutLogin we apply this type of run function when the backed has been started without UI (i.e. after reboot).
 // In this case make no sense handle registration steps.
-func (c *Client) RunWithoutLogin(dns *DNSList, dnsReadyListener DnsReadyListener, envList *EnvList) error {
+func (c *Client) RunWithoutLogin(platformFiles PlatformFiles, dns *DNSList, dnsReadyListener DnsReadyListener, envList *EnvList) error {
 	exportEnvList(envList)
+
+	cfgFile := platformFiles.ConfigurationFilePath()
+	stateFile := platformFiles.StateFilePath()
+
+	log.Infof("Starting client without login with config: %s, state: %s", cfgFile, stateFile)
+
 	cfg, err := profilemanager.UpdateOrCreateConfig(profilemanager.ConfigInput{
-		ConfigPath: c.cfgFile,
+		ConfigPath: cfgFile,
 	})
 	if err != nil {
 		return err
@@ -141,8 +157,8 @@ func (c *Client) RunWithoutLogin(dns *DNSList, dnsReadyListener DnsReadyListener
 
 	// todo do not throw error in case of cancelled context
 	ctx = internal.CtxInitState(ctx)
-	c.connectClient = internal.NewConnectClient(ctx, cfg, c.recorder)
-	return c.connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, slices.Clone(dns.items), dnsReadyListener)
+	c.connectClient = internal.NewConnectClient(ctx, cfg, c.recorder, false)
+	return c.connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, slices.Clone(dns.items), dnsReadyListener, stateFile)
 }
 
 // Stop the internal client and free the resources
@@ -156,6 +172,19 @@ func (c *Client) Stop() {
 	c.ctxCancel()
 }
 
+func (c *Client) RenewTun(fd int) error {
+	if c.connectClient == nil {
+		return fmt.Errorf("engine not running")
+	}
+
+	e := c.connectClient.Engine()
+	if e == nil {
+		return fmt.Errorf("engine not initialized")
+	}
+
+	return e.RenewTun(fd)
+}
+
 // SetTraceLogLevel configure the logger to trace level
 func (c *Client) SetTraceLogLevel() {
 	log.SetLevel(log.TraceLevel)
@@ -177,6 +206,7 @@ func (c *Client) PeersList() *PeerInfoArray {
 			p.IP,
 			p.FQDN,
 			p.ConnStatus.String(),
+			PeerRoutes{routes: maps.Keys(p.GetRoutes())},
 		}
 		peerInfos[n] = pi
 	}
@@ -201,31 +231,43 @@ func (c *Client) Networks() *NetworkArray {
 		return nil
 	}
 
+	routeSelector := routeManager.GetRouteSelector()
+	if routeSelector == nil {
+		log.Error("could not get route selector")
+		return nil
+	}
+
 	networkArray := &NetworkArray{
 		items: make([]Network, 0),
 	}
 
+	resolvedDomains := c.recorder.GetResolvedDomainsStates()
+
 	for id, routes := range routeManager.GetClientRoutesWithNetID() {
 		if len(routes) == 0 {
 			continue
 		}
 
 		r := routes[0]
+		domains := c.getNetworkDomainsFromRoute(r, resolvedDomains)
 		netStr := r.Network.String()
+
 		if r.IsDynamic() {
 			netStr = r.Domains.SafeString()
 		}
 
-		peer, err := c.recorder.GetPeer(routes[0].Peer)
+		routePeer, err := c.recorder.GetPeer(routes[0].Peer)
 		if err != nil {
 			log.Errorf("could not get peer info for %s: %v", routes[0].Peer, err)
 			continue
 		}
 		network := Network{
-			Name:    string(id),
-			Network: netStr,
-			Peer:    peer.FQDN,
-			Status:  peer.ConnStatus.String(),
+			Name:       string(id),
+			Network:    netStr,
+			Peer:       routePeer.FQDN,
+			Status:     routePeer.ConnStatus.String(),
+			IsSelected: routeSelector.IsSelected(id),
+			Domains:    domains,
 		}
 		networkArray.Add(network)
 	}
@@ -253,6 +295,69 @@ func (c *Client) RemoveConnectionListener() {
 	c.recorder.RemoveConnectionListener()
 }
 
+func (c *Client) toggleRoute(command routeCommand) error {
+	return command.toggleRoute()
+}
+
+func (c *Client) getRouteManager() (routemanager.Manager, error) {
+	client := c.connectClient
+	if client == nil {
+		return nil, fmt.Errorf("not connected")
+	}
+
+	engine := client.Engine()
+	if engine == nil {
+		return nil, fmt.Errorf("engine is not running")
+	}
+
+	manager := engine.GetRouteManager()
+	if manager == nil {
+		return nil, fmt.Errorf("could not get route manager")
+	}
+
+	return manager, nil
+}
+
+func (c *Client) SelectRoute(route string) error {
+	manager, err := c.getRouteManager()
+	if err != nil {
+		return err
+	}
+
+	return c.toggleRoute(selectRouteCommand{route: route, manager: manager})
+}
+
+func (c *Client) DeselectRoute(route string) error {
+	manager, err := c.getRouteManager()
+	if err != nil {
+		return err
+	}
+
+	return c.toggleRoute(deselectRouteCommand{route: route, manager: manager})
+}
+
+// getNetworkDomainsFromRoute extracts domains from a route and enriches each domain
+// with its resolved IP addresses from the provided resolvedDomains map.
+func (c *Client) getNetworkDomainsFromRoute(route *route.Route, resolvedDomains map[domain.Domain]peer.ResolvedDomainInfo) NetworkDomains {
+	domains := NetworkDomains{}
+
+	for _, d := range route.Domains {
+		networkDomain := NetworkDomain{
+			Address: d.SafeString(),
+		}
+
+		if info, exists := resolvedDomains[d]; exists {
+			for _, prefix := range info.Prefixes {
+				networkDomain.addResolvedIP(prefix.Addr().String())
+			}
+		}
+
+		domains.Add(&networkDomain)
+	}
+
+	return domains
+}
+
 func exportEnvList(list *EnvList) {
 	if list == nil {
 		return

client/android/login.go

@@ -32,7 +32,7 @@ type ErrListener interface {
 // URLOpener it is a callback interface. The Open function will be triggered if
 // the backend want to show an url for the user
 type URLOpener interface {
-	Open(string)
+	Open(url string, userCode string)
 	OnLoginSuccess()
 }
 
@@ -148,9 +148,9 @@ func (a *Auth) loginWithSetupKeyAndSaveConfig(setupKey string, deviceName string
 }
 
 // Login try register the client on the server
-func (a *Auth) Login(resultListener ErrListener, urlOpener URLOpener) {
+func (a *Auth) Login(resultListener ErrListener, urlOpener URLOpener, isAndroidTV bool) {
 	go func() {
-		err := a.login(urlOpener)
+		err := a.login(urlOpener, isAndroidTV)
 		if err != nil {
 			resultListener.OnError(err)
 		} else {
@@ -159,7 +159,7 @@ func (a *Auth) Login(resultListener ErrListener, urlOpener URLOpener) {
 	}()
 }
 
-func (a *Auth) login(urlOpener URLOpener) error {
+func (a *Auth) login(urlOpener URLOpener, isAndroidTV bool) error {
 	var needsLogin bool
 
 	// check if we need to generate JWT token
@@ -173,7 +173,7 @@ func (a *Auth) login(urlOpener URLOpener) error {
 
 	jwtToken := ""
 	if needsLogin {
-		tokenInfo, err := a.foregroundGetTokenInfo(urlOpener)
+		tokenInfo, err := a.foregroundGetTokenInfo(urlOpener, isAndroidTV)
 		if err != nil {
 			return fmt.Errorf("interactive sso login failed: %v", err)
 		}
@@ -199,8 +199,8 @@ func (a *Auth) login(urlOpener URLOpener) error {
 	return nil
 }
 
-func (a *Auth) foregroundGetTokenInfo(urlOpener URLOpener) (*auth.TokenInfo, error) {
-	oAuthFlow, err := auth.NewOAuthFlow(a.ctx, a.config, false, "")
+func (a *Auth) foregroundGetTokenInfo(urlOpener URLOpener, isAndroidTV bool) (*auth.TokenInfo, error) {
+	oAuthFlow, err := auth.NewOAuthFlow(a.ctx, a.config, false, isAndroidTV, "")
 	if err != nil {
 		return nil, err
 	}
@@ -210,7 +210,7 @@ func (a *Auth) foregroundGetTokenInfo(urlOpener URLOpener) (*auth.TokenInfo, err
 		return nil, fmt.Errorf("getting a request OAuth flow info failed: %v", err)
 	}
 
-	go urlOpener.Open(flowInfo.VerificationURIComplete)
+	go urlOpener.Open(flowInfo.VerificationURIComplete, flowInfo.UserCode)
 
 	waitTimeout := time.Duration(flowInfo.ExpiresIn) * time.Second
 	waitCTX, cancel := context.WithTimeout(a.ctx, waitTimeout)

client/android/network_domains.go

@@ -0,0 +1,56 @@
+//go:build android
+
+package android
+
+import "fmt"
+
+type ResolvedIPs struct {
+	resolvedIPs []string
+}
+
+func (r *ResolvedIPs) Add(ipAddress string) {
+	r.resolvedIPs = append(r.resolvedIPs, ipAddress)
+}
+
+func (r *ResolvedIPs) Get(i int) (string, error) {
+	if i < 0 || i >= len(r.resolvedIPs) {
+		return "", fmt.Errorf("%d is out of range", i)
+	}
+	return r.resolvedIPs[i], nil
+}
+
+func (r *ResolvedIPs) Size() int {
+	return len(r.resolvedIPs)
+}
+
+type NetworkDomain struct {
+	Address     string
+	resolvedIPs ResolvedIPs
+}
+
+func (d *NetworkDomain) addResolvedIP(resolvedIP string) {
+	d.resolvedIPs.Add(resolvedIP)
+}
+
+func (d *NetworkDomain) GetResolvedIPs() *ResolvedIPs {
+	return &d.resolvedIPs
+}
+
+type NetworkDomains struct {
+	domains []*NetworkDomain
+}
+
+func (n *NetworkDomains) Add(domain *NetworkDomain) {
+	n.domains = append(n.domains, domain)
+}
+
+func (n *NetworkDomains) Get(i int) (*NetworkDomain, error) {
+	if i < 0 || i >= len(n.domains) {
+		return nil, fmt.Errorf("%d is out of range", i)
+	}
+	return n.domains[i], nil
+}
+
+func (n *NetworkDomains) Size() int {
+	return len(n.domains)
+}

client/android/networks.go

@@ -3,10 +3,16 @@
 package android
 
 type Network struct {
-	Name    string
-	Network string
-	Peer    string
-	Status  string
+	Name       string
+	Network    string
+	Peer       string
+	Status     string
+	IsSelected bool
+	Domains    NetworkDomains
+}
+
+func (n Network) GetNetworkDomains() *NetworkDomains {
+	return &n.Domains
 }
 
 type NetworkArray struct {

client/android/peer_notifier.go

@@ -1,3 +1,5 @@
+//go:build android
+
 package android
 
 // PeerInfo describe information about the peers. It designed for the UI usage
@@ -5,6 +7,11 @@ type PeerInfo struct {
 	IP         string
 	FQDN       string
 	ConnStatus string // Todo replace to enum
+	Routes     PeerRoutes
+}
+
+func (p *PeerInfo) GetPeerRoutes() *PeerRoutes {
+	return &p.Routes
 }
 
 // PeerInfoArray is a wrapper of []PeerInfo

client/android/peer_routes.go

@@ -0,0 +1,20 @@
+//go:build android
+
+package android
+
+import "fmt"
+
+type PeerRoutes struct {
+	routes []string
+}
+
+func (p *PeerRoutes) Get(i int) (string, error) {
+	if i < 0 || i >= len(p.routes) {
+		return "", fmt.Errorf("%d is out of range", i)
+	}
+	return p.routes[i], nil
+}
+
+func (p *PeerRoutes) Size() int {
+	return len(p.routes)
+}

client/android/platform_files.go

@@ -0,0 +1,10 @@
+//go:build android
+
+package android
+
+// PlatformFiles groups paths to files used internally by the engine that can't be created/modified
+// at their default locations due to android OS restrictions.
+type PlatformFiles interface {
+	ConfigurationFilePath() string
+	StateFilePath() string
+}

client/android/profile_manager.go

@@ -0,0 +1,257 @@
+//go:build android
+
+package android
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/internal/profilemanager"
+)
+
+const (
+	// Android-specific config filename (different from desktop default.json)
+	defaultConfigFilename = "netbird.cfg"
+	// Subdirectory for non-default profiles (must match Java Preferences.java)
+	profilesSubdir = "profiles"
+	// Android uses a single user context per app (non-empty username required by ServiceManager)
+	androidUsername = "android"
+)
+
+// Profile represents a profile for gomobile
+type Profile struct {
+	Name     string
+	IsActive bool
+}
+
+// ProfileArray wraps profiles for gomobile compatibility
+type ProfileArray struct {
+	items []*Profile
+}
+
+// Length returns the number of profiles
+func (p *ProfileArray) Length() int {
+	return len(p.items)
+}
+
+// Get returns the profile at index i
+func (p *ProfileArray) Get(i int) *Profile {
+	if i < 0 || i >= len(p.items) {
+		return nil
+	}
+	return p.items[i]
+}
+
+/*
+
+/data/data/io.netbird.client/files/           ← configDir parameter
+├── netbird.cfg                                 ← Default profile config
+├── state.json                                  ← Default profile state
+├── active_profile.json                         ← Active profile tracker (JSON with Name + Username)
+└── profiles/                                   ← Subdirectory for non-default profiles
+    ├── work.json                              ← Work profile config
+    ├── work.state.json                        ← Work profile state
+    ├── personal.json                          ← Personal profile config
+    └── personal.state.json                    ← Personal profile state
+*/
+
+// ProfileManager manages profiles for Android
+// It wraps the internal profilemanager to provide Android-specific behavior
+type ProfileManager struct {
+	configDir  string
+	serviceMgr *profilemanager.ServiceManager
+}
+
+// NewProfileManager creates a new profile manager for Android
+func NewProfileManager(configDir string) *ProfileManager {
+	// Set the default config path for Android (stored in root configDir, not profiles/)
+	defaultConfigPath := filepath.Join(configDir, defaultConfigFilename)
+
+	// Set global paths for Android
+	profilemanager.DefaultConfigPathDir = configDir
+	profilemanager.DefaultConfigPath = defaultConfigPath
+	profilemanager.ActiveProfileStatePath = filepath.Join(configDir, "active_profile.json")
+
+	// Create ServiceManager with profiles/ subdirectory
+	// This avoids modifying the global ConfigDirOverride for profile listing
+	profilesDir := filepath.Join(configDir, profilesSubdir)
+	serviceMgr := profilemanager.NewServiceManagerWithProfilesDir(defaultConfigPath, profilesDir)
+
+	return &ProfileManager{
+		configDir:  configDir,
+		serviceMgr: serviceMgr,
+	}
+}
+
+// ListProfiles returns all available profiles
+func (pm *ProfileManager) ListProfiles() (*ProfileArray, error) {
+	// Use ServiceManager (looks in profiles/ directory, checks active_profile.json for IsActive)
+	internalProfiles, err := pm.serviceMgr.ListProfiles(androidUsername)
+	if err != nil {
+		return nil, fmt.Errorf("failed to list profiles: %w", err)
+	}
+
+	// Convert internal profiles to Android Profile type
+	var profiles []*Profile
+	for _, p := range internalProfiles {
+		profiles = append(profiles, &Profile{
+			Name:     p.Name,
+			IsActive: p.IsActive,
+		})
+	}
+
+	return &ProfileArray{items: profiles}, nil
+}
+
+// GetActiveProfile returns the currently active profile name
+func (pm *ProfileManager) GetActiveProfile() (string, error) {
+	// Use ServiceManager to stay consistent with ListProfiles
+	// ServiceManager uses active_profile.json
+	activeState, err := pm.serviceMgr.GetActiveProfileState()
+	if err != nil {
+		return "", fmt.Errorf("failed to get active profile: %w", err)
+	}
+	return activeState.Name, nil
+}
+
+// SwitchProfile switches to a different profile
+func (pm *ProfileManager) SwitchProfile(profileName string) error {
+	// Use ServiceManager to stay consistent with ListProfiles
+	// ServiceManager uses active_profile.json
+	err := pm.serviceMgr.SetActiveProfileState(&profilemanager.ActiveProfileState{
+		Name:     profileName,
+		Username: androidUsername,
+	})
+	if err != nil {
+		return fmt.Errorf("failed to switch profile: %w", err)
+	}
+
+	log.Infof("switched to profile: %s", profileName)
+	return nil
+}
+
+// AddProfile creates a new profile
+func (pm *ProfileManager) AddProfile(profileName string) error {
+	// Use ServiceManager (creates profile in profiles/ directory)
+	if err := pm.serviceMgr.AddProfile(profileName, androidUsername); err != nil {
+		return fmt.Errorf("failed to add profile: %w", err)
+	}
+
+	log.Infof("created new profile: %s", profileName)
+	return nil
+}
+
+// LogoutProfile logs out from a profile (clears authentication)
+func (pm *ProfileManager) LogoutProfile(profileName string) error {
+	profileName = sanitizeProfileName(profileName)
+
+	configPath, err := pm.getProfileConfigPath(profileName)
+	if err != nil {
+		return err
+	}
+
+	// Check if profile exists
+	if _, err := os.Stat(configPath); os.IsNotExist(err) {
+		return fmt.Errorf("profile '%s' does not exist", profileName)
+	}
+
+	// Read current config using internal profilemanager
+	config, err := profilemanager.ReadConfig(configPath)
+	if err != nil {
+		return fmt.Errorf("failed to read profile config: %w", err)
+	}
+
+	// Clear authentication by removing private key and SSH key
+	config.PrivateKey = ""
+	config.SSHKey = ""
+
+	// Save config using internal profilemanager
+	if err := profilemanager.WriteOutConfig(configPath, config); err != nil {
+		return fmt.Errorf("failed to save config: %w", err)
+	}
+
+	log.Infof("logged out from profile: %s", profileName)
+	return nil
+}
+
+// RemoveProfile deletes a profile
+func (pm *ProfileManager) RemoveProfile(profileName string) error {
+	// Use ServiceManager (removes profile from profiles/ directory)
+	if err := pm.serviceMgr.RemoveProfile(profileName, androidUsername); err != nil {
+		return fmt.Errorf("failed to remove profile: %w", err)
+	}
+
+	log.Infof("removed profile: %s", profileName)
+	return nil
+}
+
+// getProfileConfigPath returns the config file path for a profile
+// This is needed for Android-specific path handling (netbird.cfg for default profile)
+func (pm *ProfileManager) getProfileConfigPath(profileName string) (string, error) {
+	if profileName == "" || profileName == profilemanager.DefaultProfileName {
+		// Android uses netbird.cfg for default profile instead of default.json
+		// Default profile is stored in root configDir, not in profiles/
+		return filepath.Join(pm.configDir, defaultConfigFilename), nil
+	}
+
+	// Non-default profiles are stored in profiles subdirectory
+	// This matches the Java Preferences.java expectation
+	profileName = sanitizeProfileName(profileName)
+	profilesDir := filepath.Join(pm.configDir, profilesSubdir)
+	return filepath.Join(profilesDir, profileName+".json"), nil
+}
+
+// GetConfigPath returns the config file path for a given profile
+// Java should call this instead of constructing paths with Preferences.configFile()
+func (pm *ProfileManager) GetConfigPath(profileName string) (string, error) {
+	return pm.getProfileConfigPath(profileName)
+}
+
+// GetStateFilePath returns the state file path for a given profile
+// Java should call this instead of constructing paths with Preferences.stateFile()
+func (pm *ProfileManager) GetStateFilePath(profileName string) (string, error) {
+	if profileName == "" || profileName == profilemanager.DefaultProfileName {
+		return filepath.Join(pm.configDir, "state.json"), nil
+	}
+
+	profileName = sanitizeProfileName(profileName)
+	profilesDir := filepath.Join(pm.configDir, profilesSubdir)
+	return filepath.Join(profilesDir, profileName+".state.json"), nil
+}
+
+// GetActiveConfigPath returns the config file path for the currently active profile
+// Java should call this instead of Preferences.getActiveProfileName() + Preferences.configFile()
+func (pm *ProfileManager) GetActiveConfigPath() (string, error) {
+	activeProfile, err := pm.GetActiveProfile()
+	if err != nil {
+		return "", fmt.Errorf("failed to get active profile: %w", err)
+	}
+	return pm.GetConfigPath(activeProfile)
+}
+
+// GetActiveStateFilePath returns the state file path for the currently active profile
+// Java should call this instead of Preferences.getActiveProfileName() + Preferences.stateFile()
+func (pm *ProfileManager) GetActiveStateFilePath() (string, error) {
+	activeProfile, err := pm.GetActiveProfile()
+	if err != nil {
+		return "", fmt.Errorf("failed to get active profile: %w", err)
+	}
+	return pm.GetStateFilePath(activeProfile)
+}
+
+// sanitizeProfileName removes invalid characters from profile name
+func sanitizeProfileName(name string) string {
+	// Keep only alphanumeric, underscore, and hyphen
+	var result strings.Builder
+	for _, r := range name {
+		if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') ||
+			(r >= '0' && r <= '9') || r == '_' || r == '-' {
+			result.WriteRune(r)
+		}
+	}
+	return result.String()
+}

client/android/route_command.go

@@ -0,0 +1,67 @@
+//go:build android
+
+package android
+
+import (
+	"fmt"
+
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/exp/maps"
+
+	"github.com/netbirdio/netbird/client/internal/routemanager"
+	"github.com/netbirdio/netbird/route"
+)
+
+func executeRouteToggle(id string, manager routemanager.Manager,
+	operationName string,
+	routeOperation func(routes []route.NetID, allRoutes []route.NetID) error) error {
+	netID := route.NetID(id)
+	routes := []route.NetID{netID}
+
+	log.Debugf("%s with id: %s", operationName, id)
+
+	if err := routeOperation(routes, maps.Keys(manager.GetClientRoutesWithNetID())); err != nil {
+		log.Debugf("error when %s: %s", operationName, err)
+		return fmt.Errorf("error %s: %w", operationName, err)
+	}
+
+	manager.TriggerSelection(manager.GetClientRoutes())
+
+	return nil
+}
+
+type routeCommand interface {
+	toggleRoute() error
+}
+
+type selectRouteCommand struct {
+	route   string
+	manager routemanager.Manager
+}
+
+func (s selectRouteCommand) toggleRoute() error {
+	routeSelector := s.manager.GetRouteSelector()
+	if routeSelector == nil {
+		return fmt.Errorf("no route selector available")
+	}
+
+	routeOperation := func(routes []route.NetID, allRoutes []route.NetID) error {
+		return routeSelector.SelectRoutes(routes, true, allRoutes)
+	}
+
+	return executeRouteToggle(s.route, s.manager, "selecting route", routeOperation)
+}
+
+type deselectRouteCommand struct {
+	route   string
+	manager routemanager.Manager
+}
+
+func (d deselectRouteCommand) toggleRoute() error {
+	routeSelector := d.manager.GetRouteSelector()
+	if routeSelector == nil {
+		return fmt.Errorf("no route selector available")
+	}
+
+	return executeRouteToggle(d.route, d.manager, "deselecting route", routeSelector.DeselectRoutes)
+}

client/cmd/login.go

@@ -4,14 +4,12 @@ import (
 	"context"
 	"fmt"
 	"os"
-	"os/exec"
 	"os/user"
 	"runtime"
 	"strings"
 	"time"
 
 	log "github.com/sirupsen/logrus"
-	"github.com/skratchdot/open-golang/open"
 	"github.com/spf13/cobra"
 	"google.golang.org/grpc/codes"
 	gstatus "google.golang.org/grpc/status"
@@ -332,7 +330,7 @@ func foregroundGetTokenInfo(ctx context.Context, cmd *cobra.Command, config *pro
 		hint = profileState.Email
 	}
 
-	oAuthFlow, err := auth.NewOAuthFlow(ctx, config, isUnixRunningDesktop(), hint)
+	oAuthFlow, err := auth.NewOAuthFlow(ctx, config, isUnixRunningDesktop(), false, hint)
 	if err != nil {
 		return nil, err
 	}
@@ -373,21 +371,13 @@ func openURL(cmd *cobra.Command, verificationURIComplete, userCode string, noBro
 	cmd.Println("")
 
 	if !noBrowser {
-		if err := openBrowser(verificationURIComplete); err != nil {
+		if err := util.OpenBrowser(verificationURIComplete); err != nil {
 			cmd.Println("\nAlternatively, you may want to use a setup key, see:\n\n" +
 				"https://docs.netbird.io/how-to/register-machines-using-setup-keys")
 		}
 	}
 }
 
-// openBrowser opens the URL in a browser, respecting the BROWSER environment variable.
-func openBrowser(url string) error {
-	if browser := os.Getenv("BROWSER"); browser != "" {
-		return exec.Command(browser, url).Start()
-	}
-	return open.Run(url)
-}
-
 // isUnixRunningDesktop checks if a Linux OS is running desktop environment
 func isUnixRunningDesktop() bool {
 	if runtime.GOOS != "linux" && runtime.GOOS != "freebsd" {

client/cmd/root.go

@@ -85,6 +85,9 @@ var (
 
 // Execute executes the root command.
 func Execute() error {
+	if isUpdateBinary() {
+		return updateCmd.Execute()
+	}
 	return rootCmd.Execute()
 }
 

client/cmd/signer/artifactkey.go

@@ -0,0 +1,176 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/spf13/cobra"
+
+	"github.com/netbirdio/netbird/client/internal/updatemanager/reposign"
+)
+
+var (
+	bundlePubKeysRootPrivKeyFile string
+	bundlePubKeysPubKeyFiles     []string
+	bundlePubKeysFile            string
+
+	createArtifactKeyRootPrivKeyFile string
+	createArtifactKeyPrivKeyFile     string
+	createArtifactKeyPubKeyFile      string
+	createArtifactKeyExpiration      time.Duration
+)
+
+var createArtifactKeyCmd = &cobra.Command{
+	Use:   "create-artifact-key",
+	Short: "Create a new artifact signing key",
+	Long: `Generate a new artifact signing key pair signed by the root private key.
+The artifact key will be used to sign software artifacts/updates.`,
+	SilenceUsage: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if createArtifactKeyExpiration <= 0 {
+			return fmt.Errorf("--expiration must be a positive duration (e.g., 720h, 365d, 8760h)")
+		}
+
+		if err := handleCreateArtifactKey(cmd, createArtifactKeyRootPrivKeyFile, createArtifactKeyPrivKeyFile, createArtifactKeyPubKeyFile, createArtifactKeyExpiration); err != nil {
+			return fmt.Errorf("failed to create artifact key: %w", err)
+		}
+		return nil
+	},
+}
+
+var bundlePubKeysCmd = &cobra.Command{
+	Use:   "bundle-pub-keys",
+	Short: "Bundle multiple artifact public keys into a signed package",
+	Long: `Bundle one or more artifact public keys into a signed package using the root private key.
+This command is typically used to distribute or authorize a set of valid artifact signing keys.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if len(bundlePubKeysPubKeyFiles) == 0 {
+			return fmt.Errorf("at least one --artifact-pub-key-file must be provided")
+		}
+
+		if err := handleBundlePubKeys(cmd, bundlePubKeysRootPrivKeyFile, bundlePubKeysPubKeyFiles, bundlePubKeysFile); err != nil {
+			return fmt.Errorf("failed to bundle public keys: %w", err)
+		}
+		return nil
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(createArtifactKeyCmd)
+
+	createArtifactKeyCmd.Flags().StringVar(&createArtifactKeyRootPrivKeyFile, "root-private-key-file", "", "Path to the root private key file used to sign the artifact key")
+	createArtifactKeyCmd.Flags().StringVar(&createArtifactKeyPrivKeyFile, "artifact-priv-key-file", "", "Path where the artifact private key will be saved")
+	createArtifactKeyCmd.Flags().StringVar(&createArtifactKeyPubKeyFile, "artifact-pub-key-file", "", "Path where the artifact public key will be saved")
+	createArtifactKeyCmd.Flags().DurationVar(&createArtifactKeyExpiration, "expiration", 0, "Expiration duration for the artifact key (e.g., 720h, 365d, 8760h)")
+
+	if err := createArtifactKeyCmd.MarkFlagRequired("root-private-key-file"); err != nil {
+		panic(fmt.Errorf("mark root-private-key-file as required: %w", err))
+	}
+	if err := createArtifactKeyCmd.MarkFlagRequired("artifact-priv-key-file"); err != nil {
+		panic(fmt.Errorf("mark artifact-priv-key-file as required: %w", err))
+	}
+	if err := createArtifactKeyCmd.MarkFlagRequired("artifact-pub-key-file"); err != nil {
+		panic(fmt.Errorf("mark artifact-pub-key-file as required: %w", err))
+	}
+	if err := createArtifactKeyCmd.MarkFlagRequired("expiration"); err != nil {
+		panic(fmt.Errorf("mark expiration as required: %w", err))
+	}
+
+	rootCmd.AddCommand(bundlePubKeysCmd)
+
+	bundlePubKeysCmd.Flags().StringVar(&bundlePubKeysRootPrivKeyFile, "root-private-key-file", "", "Path to the root private key file used to sign the bundle")
+	bundlePubKeysCmd.Flags().StringArrayVar(&bundlePubKeysPubKeyFiles, "artifact-pub-key-file", nil, "Path(s) to the artifact public key files to include in the bundle (can be repeated)")
+	bundlePubKeysCmd.Flags().StringVar(&bundlePubKeysFile, "bundle-pub-key-file", "", "Path where the public keys will be saved")
+
+	if err := bundlePubKeysCmd.MarkFlagRequired("root-private-key-file"); err != nil {
+		panic(fmt.Errorf("mark root-private-key-file as required: %w", err))
+	}
+	if err := bundlePubKeysCmd.MarkFlagRequired("artifact-pub-key-file"); err != nil {
+		panic(fmt.Errorf("mark artifact-pub-key-file as required: %w", err))
+	}
+	if err := bundlePubKeysCmd.MarkFlagRequired("bundle-pub-key-file"); err != nil {
+		panic(fmt.Errorf("mark bundle-pub-key-file as required: %w", err))
+	}
+}
+
+func handleCreateArtifactKey(cmd *cobra.Command, rootPrivKeyFile, artifactPrivKeyFile, artifactPubKeyFile string, expiration time.Duration) error {
+	cmd.Println("Creating new artifact signing key...")
+
+	privKeyPEM, err := os.ReadFile(rootPrivKeyFile)
+	if err != nil {
+		return fmt.Errorf("read root private key file: %w", err)
+	}
+
+	privateRootKey, err := reposign.ParseRootKey(privKeyPEM)
+	if err != nil {
+		return fmt.Errorf("failed to parse private root key: %w", err)
+	}
+
+	artifactKey, privPEM, pubPEM, signature, err := reposign.GenerateArtifactKey(privateRootKey, expiration)
+	if err != nil {
+		return fmt.Errorf("generate artifact key: %w", err)
+	}
+
+	if err := os.WriteFile(artifactPrivKeyFile, privPEM, 0o600); err != nil {
+		return fmt.Errorf("write private key file (%s): %w", artifactPrivKeyFile, err)
+	}
+
+	if err := os.WriteFile(artifactPubKeyFile, pubPEM, 0o600); err != nil {
+		return fmt.Errorf("write public key file (%s): %w", artifactPubKeyFile, err)
+	}
+
+	signatureFile := artifactPubKeyFile + ".sig"
+	if err := os.WriteFile(signatureFile, signature, 0o600); err != nil {
+		return fmt.Errorf("write signature file (%s): %w", signatureFile, err)
+	}
+
+	cmd.Printf("✅ Artifact key created successfully.\n")
+	cmd.Printf("%s\n", artifactKey.String())
+	return nil
+}
+
+func handleBundlePubKeys(cmd *cobra.Command, rootPrivKeyFile string, artifactPubKeyFiles []string, bundlePubKeysFile string) error {
+	cmd.Println("📦 Bundling public keys into signed package...")
+
+	privKeyPEM, err := os.ReadFile(rootPrivKeyFile)
+	if err != nil {
+		return fmt.Errorf("read root private key file: %w", err)
+	}
+
+	privateRootKey, err := reposign.ParseRootKey(privKeyPEM)
+	if err != nil {
+		return fmt.Errorf("failed to parse private root key: %w", err)
+	}
+
+	publicKeys := make([]reposign.PublicKey, 0, len(artifactPubKeyFiles))
+	for _, pubFile := range artifactPubKeyFiles {
+		pubPem, err := os.ReadFile(pubFile)
+		if err != nil {
+			return fmt.Errorf("read public key file: %w", err)
+		}
+
+		pk, err := reposign.ParseArtifactPubKey(pubPem)
+		if err != nil {
+			return fmt.Errorf("failed to parse artifact key: %w", err)
+		}
+		publicKeys = append(publicKeys, pk)
+	}
+
+	parsedKeys, signature, err := reposign.BundleArtifactKeys(privateRootKey, publicKeys)
+	if err != nil {
+		return fmt.Errorf("bundle artifact keys: %w", err)
+	}
+
+	if err := os.WriteFile(bundlePubKeysFile, parsedKeys, 0o600); err != nil {
+		return fmt.Errorf("write public keys file (%s): %w", bundlePubKeysFile, err)
+	}
+
+	signatureFile := bundlePubKeysFile + ".sig"
+	if err := os.WriteFile(signatureFile, signature, 0o600); err != nil {
+		return fmt.Errorf("write signature file (%s): %w", signatureFile, err)
+	}
+
+	cmd.Printf("✅ Bundle created with %d public keys.\n", len(artifactPubKeyFiles))
+	return nil
+}

client/cmd/signer/artifactsign.go

@@ -0,0 +1,276 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+
+	"github.com/netbirdio/netbird/client/internal/updatemanager/reposign"
+)
+
+const (
+	envArtifactPrivateKey = "NB_ARTIFACT_PRIV_KEY"
+)
+
+var (
+	signArtifactPrivKeyFile  string
+	signArtifactArtifactFile string
+
+	verifyArtifactPubKeyFile    string
+	verifyArtifactFile          string
+	verifyArtifactSignatureFile string
+
+	verifyArtifactKeyPubKeyFile     string
+	verifyArtifactKeyRootPubKeyFile string
+	verifyArtifactKeySignatureFile  string
+	verifyArtifactKeyRevocationFile string
+)
+
+var signArtifactCmd = &cobra.Command{
+	Use:   "sign-artifact",
+	Short: "Sign an artifact using an artifact private key",
+	Long: `Sign a software artifact (e.g., update bundle or binary) using the artifact's private key.
+This command produces a detached signature that can be verified using the corresponding artifact public key.`,
+	SilenceUsage: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if err := handleSignArtifact(cmd, signArtifactPrivKeyFile, signArtifactArtifactFile); err != nil {
+			return fmt.Errorf("failed to sign artifact: %w", err)
+		}
+		return nil
+	},
+}
+
+var verifyArtifactCmd = &cobra.Command{
+	Use:          "verify-artifact",
+	Short:        "Verify an artifact signature using an artifact public key",
+	Long:         `Verify a software artifact signature using the artifact's public key.`,
+	SilenceUsage: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if err := handleVerifyArtifact(cmd, verifyArtifactPubKeyFile, verifyArtifactFile, verifyArtifactSignatureFile); err != nil {
+			return fmt.Errorf("failed to verify artifact: %w", err)
+		}
+		return nil
+	},
+}
+
+var verifyArtifactKeyCmd = &cobra.Command{
+	Use:   "verify-artifact-key",
+	Short: "Verify an artifact public key was signed by a root key",
+	Long: `Verify that an artifact public key (or bundle) was properly signed by a root key.
+This validates the chain of trust from the root key to the artifact key.`,
+	SilenceUsage: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if err := handleVerifyArtifactKey(cmd, verifyArtifactKeyPubKeyFile, verifyArtifactKeyRootPubKeyFile, verifyArtifactKeySignatureFile, verifyArtifactKeyRevocationFile); err != nil {
+			return fmt.Errorf("failed to verify artifact key: %w", err)
+		}
+		return nil
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(signArtifactCmd)
+	rootCmd.AddCommand(verifyArtifactCmd)
+	rootCmd.AddCommand(verifyArtifactKeyCmd)
+
+	signArtifactCmd.Flags().StringVar(&signArtifactPrivKeyFile, "artifact-key-file", "", fmt.Sprintf("Path to the artifact private key file used for signing (or set %s env var)", envArtifactPrivateKey))
+	signArtifactCmd.Flags().StringVar(&signArtifactArtifactFile, "artifact-file", "", "Path to the artifact to be signed")
+
+	// artifact-file is required, but artifact-key-file can come from env var
+	if err := signArtifactCmd.MarkFlagRequired("artifact-file"); err != nil {
+		panic(fmt.Errorf("mark artifact-file as required: %w", err))
+	}
+
+	verifyArtifactCmd.Flags().StringVar(&verifyArtifactPubKeyFile, "artifact-public-key-file", "", "Path to the artifact public key file")
+	verifyArtifactCmd.Flags().StringVar(&verifyArtifactFile, "artifact-file", "", "Path to the artifact to be verified")
+	verifyArtifactCmd.Flags().StringVar(&verifyArtifactSignatureFile, "signature-file", "", "Path to the signature file")
+
+	if err := verifyArtifactCmd.MarkFlagRequired("artifact-public-key-file"); err != nil {
+		panic(fmt.Errorf("mark artifact-public-key-file as required: %w", err))
+	}
+	if err := verifyArtifactCmd.MarkFlagRequired("artifact-file"); err != nil {
+		panic(fmt.Errorf("mark artifact-file as required: %w", err))
+	}
+	if err := verifyArtifactCmd.MarkFlagRequired("signature-file"); err != nil {
+		panic(fmt.Errorf("mark signature-file as required: %w", err))
+	}
+
+	verifyArtifactKeyCmd.Flags().StringVar(&verifyArtifactKeyPubKeyFile, "artifact-key-file", "", "Path to the artifact public key file or bundle")
+	verifyArtifactKeyCmd.Flags().StringVar(&verifyArtifactKeyRootPubKeyFile, "root-key-file", "", "Path to the root public key file or bundle")
+	verifyArtifactKeyCmd.Flags().StringVar(&verifyArtifactKeySignatureFile, "signature-file", "", "Path to the signature file")
+	verifyArtifactKeyCmd.Flags().StringVar(&verifyArtifactKeyRevocationFile, "revocation-file", "", "Path to the revocation list file (optional)")
+
+	if err := verifyArtifactKeyCmd.MarkFlagRequired("artifact-key-file"); err != nil {
+		panic(fmt.Errorf("mark artifact-key-file as required: %w", err))
+	}
+	if err := verifyArtifactKeyCmd.MarkFlagRequired("root-key-file"); err != nil {
+		panic(fmt.Errorf("mark root-key-file as required: %w", err))
+	}
+	if err := verifyArtifactKeyCmd.MarkFlagRequired("signature-file"); err != nil {
+		panic(fmt.Errorf("mark signature-file as required: %w", err))
+	}
+}
+
+func handleSignArtifact(cmd *cobra.Command, privKeyFile, artifactFile string) error {
+	cmd.Println("🖋️  Signing artifact...")
+
+	// Load private key from env var or file
+	var privKeyPEM []byte
+	var err error
+
+	if envKey := os.Getenv(envArtifactPrivateKey); envKey != "" {
+		// Use key from environment variable
+		privKeyPEM = []byte(envKey)
+	} else if privKeyFile != "" {
+		// Fall back to file
+		privKeyPEM, err = os.ReadFile(privKeyFile)
+		if err != nil {
+			return fmt.Errorf("read private key file: %w", err)
+		}
+	} else {
+		return fmt.Errorf("artifact private key must be provided via %s environment variable or --artifact-key-file flag", envArtifactPrivateKey)
+	}
+
+	privateKey, err := reposign.ParseArtifactKey(privKeyPEM)
+	if err != nil {
+		return fmt.Errorf("failed to parse artifact private key: %w", err)
+	}
+
+	artifactData, err := os.ReadFile(artifactFile)
+	if err != nil {
+		return fmt.Errorf("read artifact file: %w", err)
+	}
+
+	signature, err := reposign.SignData(privateKey, artifactData)
+	if err != nil {
+		return fmt.Errorf("sign artifact: %w", err)
+	}
+
+	sigFile := artifactFile + ".sig"
+	if err := os.WriteFile(artifactFile+".sig", signature, 0o600); err != nil {
+		return fmt.Errorf("write signature file (%s): %w", sigFile, err)
+	}
+
+	cmd.Printf("✅ Artifact signed successfully.\n")
+	cmd.Printf("Signature file: %s\n", sigFile)
+	return nil
+}
+
+func handleVerifyArtifact(cmd *cobra.Command, pubKeyFile, artifactFile, signatureFile string) error {
+	cmd.Println("🔍 Verifying artifact...")
+
+	// Read artifact public key
+	pubKeyPEM, err := os.ReadFile(pubKeyFile)
+	if err != nil {
+		return fmt.Errorf("read public key file: %w", err)
+	}
+
+	publicKey, err := reposign.ParseArtifactPubKey(pubKeyPEM)
+	if err != nil {
+		return fmt.Errorf("failed to parse artifact public key: %w", err)
+	}
+
+	// Read artifact data
+	artifactData, err := os.ReadFile(artifactFile)
+	if err != nil {
+		return fmt.Errorf("read artifact file: %w", err)
+	}
+
+	// Read signature
+	sigBytes, err := os.ReadFile(signatureFile)
+	if err != nil {
+		return fmt.Errorf("read signature file: %w", err)
+	}
+
+	signature, err := reposign.ParseSignature(sigBytes)
+	if err != nil {
+		return fmt.Errorf("failed to parse signature: %w", err)
+	}
+
+	// Validate artifact
+	if err := reposign.ValidateArtifact([]reposign.PublicKey{publicKey}, artifactData, *signature); err != nil {
+		return fmt.Errorf("artifact verification failed: %w", err)
+	}
+
+	cmd.Println("✅ Artifact signature is valid")
+	cmd.Printf("Artifact: %s\n", artifactFile)
+	cmd.Printf("Signed by key: %s\n", signature.KeyID)
+	cmd.Printf("Signature timestamp: %s\n", signature.Timestamp.Format("2006-01-02 15:04:05 MST"))
+	return nil
+}
+
+func handleVerifyArtifactKey(cmd *cobra.Command, artifactKeyFile, rootKeyFile, signatureFile, revocationFile string) error {
+	cmd.Println("🔍 Verifying artifact key...")
+
+	// Read artifact key data
+	artifactKeyData, err := os.ReadFile(artifactKeyFile)
+	if err != nil {
+		return fmt.Errorf("read artifact key file: %w", err)
+	}
+
+	// Read root public key(s)
+	rootKeyData, err := os.ReadFile(rootKeyFile)
+	if err != nil {
+		return fmt.Errorf("read root key file: %w", err)
+	}
+
+	rootPublicKeys, err := parseRootPublicKeys(rootKeyData)
+	if err != nil {
+		return fmt.Errorf("failed to parse root public key(s): %w", err)
+	}
+
+	// Read signature
+	sigBytes, err := os.ReadFile(signatureFile)
+	if err != nil {
+		return fmt.Errorf("read signature file: %w", err)
+	}
+
+	signature, err := reposign.ParseSignature(sigBytes)
+	if err != nil {
+		return fmt.Errorf("failed to parse signature: %w", err)
+	}
+
+	// Read optional revocation list
+	var revocationList *reposign.RevocationList
+	if revocationFile != "" {
+		revData, err := os.ReadFile(revocationFile)
+		if err != nil {
+			return fmt.Errorf("read revocation file: %w", err)
+		}
+
+		revocationList, err = reposign.ParseRevocationList(revData)
+		if err != nil {
+			return fmt.Errorf("failed to parse revocation list: %w", err)
+		}
+	}
+
+	// Validate artifact key(s)
+	validKeys, err := reposign.ValidateArtifactKeys(rootPublicKeys, artifactKeyData, *signature, revocationList)
+	if err != nil {
+		return fmt.Errorf("artifact key verification failed: %w", err)
+	}
+
+	cmd.Println("✅ Artifact key(s) verified successfully")
+	cmd.Printf("Signed by root key: %s\n", signature.KeyID)
+	cmd.Printf("Signature timestamp: %s\n", signature.Timestamp.Format("2006-01-02 15:04:05 MST"))
+	cmd.Printf("\nValid artifact keys (%d):\n", len(validKeys))
+	for i, key := range validKeys {
+		cmd.Printf("  [%d] Key ID: %s\n", i+1, key.Metadata.ID)
+		cmd.Printf("      Created: %s\n", key.Metadata.CreatedAt.Format("2006-01-02 15:04:05 MST"))
+		if !key.Metadata.ExpiresAt.IsZero() {
+			cmd.Printf("      Expires: %s\n", key.Metadata.ExpiresAt.Format("2006-01-02 15:04:05 MST"))
+		} else {
+			cmd.Printf("      Expires: Never\n")
+		}
+	}
+	return nil
+}
+
+// parseRootPublicKeys parses a root public key from PEM data
+func parseRootPublicKeys(data []byte) ([]reposign.PublicKey, error) {
+	key, err := reposign.ParseRootPublicKey(data)
+	if err != nil {
+		return nil, err
+	}
+	return []reposign.PublicKey{key}, nil
+}

client/cmd/signer/main.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var rootCmd = &cobra.Command{
+	Use:   "signer",
+	Short: "A CLI tool for managing cryptographic keys and artifacts",
+	Long: `signer is a command-line tool that helps you manage
+root keys, artifact keys, and revocation lists securely.`,
+}
+
+func main() {
+	if err := rootCmd.Execute(); err != nil {
+		rootCmd.Println(err)
+		os.Exit(1)
+	}
+}

client/cmd/signer/revocation.go

@@ -0,0 +1,220 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/spf13/cobra"
+
+	"github.com/netbirdio/netbird/client/internal/updatemanager/reposign"
+)
+
+const (
+	defaultRevocationListExpiration = 365 * 24 * time.Hour // 1 year
+)
+
+var (
+	keyID              string
+	revocationListFile string
+	privateRootKeyFile string
+	publicRootKeyFile  string
+	signatureFile      string
+	expirationDuration time.Duration
+)
+
+var createRevocationListCmd = &cobra.Command{
+	Use:          "create-revocation-list",
+	Short:        "Create a new revocation list signed by the private root key",
+	SilenceUsage: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return handleCreateRevocationList(cmd, revocationListFile, privateRootKeyFile)
+	},
+}
+
+var extendRevocationListCmd = &cobra.Command{
+	Use:          "extend-revocation-list",
+	Short:        "Extend an existing revocation list with a given key ID",
+	SilenceUsage: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return handleExtendRevocationList(cmd, keyID, revocationListFile, privateRootKeyFile)
+	},
+}
+
+var verifyRevocationListCmd = &cobra.Command{
+	Use:          "verify-revocation-list",
+	Short:        "Verify a revocation list signature using the public root key",
+	SilenceUsage: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return handleVerifyRevocationList(cmd, revocationListFile, signatureFile, publicRootKeyFile)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(createRevocationListCmd)
+	rootCmd.AddCommand(extendRevocationListCmd)
+	rootCmd.AddCommand(verifyRevocationListCmd)
+
+	createRevocationListCmd.Flags().StringVar(&revocationListFile, "revocation-list-file", "", "Path to the existing revocation list file")
+	createRevocationListCmd.Flags().StringVar(&privateRootKeyFile, "private-root-key", "", "Path to the private root key PEM file")
+	createRevocationListCmd.Flags().DurationVar(&expirationDuration, "expiration", defaultRevocationListExpiration, "Expiration duration for the revocation list (e.g., 8760h for 1 year)")
+	if err := createRevocationListCmd.MarkFlagRequired("revocation-list-file"); err != nil {
+		panic(err)
+	}
+	if err := createRevocationListCmd.MarkFlagRequired("private-root-key"); err != nil {
+		panic(err)
+	}
+
+	extendRevocationListCmd.Flags().StringVar(&keyID, "key-id", "", "ID of the key to extend the revocation list for")
+	extendRevocationListCmd.Flags().StringVar(&revocationListFile, "revocation-list-file", "", "Path to the existing revocation list file")
+	extendRevocationListCmd.Flags().StringVar(&privateRootKeyFile, "private-root-key", "", "Path to the private root key PEM file")
+	extendRevocationListCmd.Flags().DurationVar(&expirationDuration, "expiration", defaultRevocationListExpiration, "Expiration duration for the revocation list (e.g., 8760h for 1 year)")
+	if err := extendRevocationListCmd.MarkFlagRequired("key-id"); err != nil {
+		panic(err)
+	}
+	if err := extendRevocationListCmd.MarkFlagRequired("revocation-list-file"); err != nil {
+		panic(err)
+	}
+	if err := extendRevocationListCmd.MarkFlagRequired("private-root-key"); err != nil {
+		panic(err)
+	}
+
+	verifyRevocationListCmd.Flags().StringVar(&revocationListFile, "revocation-list-file", "", "Path to the revocation list file")
+	verifyRevocationListCmd.Flags().StringVar(&signatureFile, "signature-file", "", "Path to the signature file")
+	verifyRevocationListCmd.Flags().StringVar(&publicRootKeyFile, "public-root-key", "", "Path to the public root key PEM file")
+	if err := verifyRevocationListCmd.MarkFlagRequired("revocation-list-file"); err != nil {
+		panic(err)
+	}
+	if err := verifyRevocationListCmd.MarkFlagRequired("signature-file"); err != nil {
+		panic(err)
+	}
+	if err := verifyRevocationListCmd.MarkFlagRequired("public-root-key"); err != nil {
+		panic(err)
+	}
+}
+
+func handleCreateRevocationList(cmd *cobra.Command, revocationListFile string, privateRootKeyFile string) error {
+	privKeyPEM, err := os.ReadFile(privateRootKeyFile)
+	if err != nil {
+		return fmt.Errorf("failed to read private root key file: %w", err)
+	}
+
+	privateRootKey, err := reposign.ParseRootKey(privKeyPEM)
+	if err != nil {
+		return fmt.Errorf("failed to parse private root key: %w", err)
+	}
+
+	rlBytes, sigBytes, err := reposign.CreateRevocationList(*privateRootKey, expirationDuration)
+	if err != nil {
+		return fmt.Errorf("failed to create revocation list: %w", err)
+	}
+
+	if err := writeOutputFiles(revocationListFile, revocationListFile+".sig", rlBytes, sigBytes); err != nil {
+		return fmt.Errorf("failed to write output files: %w", err)
+	}
+
+	cmd.Println("✅ Revocation list created successfully")
+	return nil
+}
+
+func handleExtendRevocationList(cmd *cobra.Command, keyID, revocationListFile, privateRootKeyFile string) error {
+	privKeyPEM, err := os.ReadFile(privateRootKeyFile)
+	if err != nil {
+		return fmt.Errorf("failed to read private root key file: %w", err)
+	}
+
+	privateRootKey, err := reposign.ParseRootKey(privKeyPEM)
+	if err != nil {
+		return fmt.Errorf("failed to parse private root key: %w", err)
+	}
+
+	rlBytes, err := os.ReadFile(revocationListFile)
+	if err != nil {
+		return fmt.Errorf("failed to read revocation list file: %w", err)
+	}
+
+	rl, err := reposign.ParseRevocationList(rlBytes)
+	if err != nil {
+		return fmt.Errorf("failed to parse revocation list: %w", err)
+	}
+
+	kid, err := reposign.ParseKeyID(keyID)
+	if err != nil {
+		return fmt.Errorf("invalid key ID: %w", err)
+	}
+
+	newRLBytes, sigBytes, err := reposign.ExtendRevocationList(*privateRootKey, *rl, kid, expirationDuration)
+	if err != nil {
+		return fmt.Errorf("failed to extend revocation list: %w", err)
+	}
+
+	if err := writeOutputFiles(revocationListFile, revocationListFile+".sig", newRLBytes, sigBytes); err != nil {
+		return fmt.Errorf("failed to write output files: %w", err)
+	}
+
+	cmd.Println("✅ Revocation list extended successfully")
+	return nil
+}
+
+func handleVerifyRevocationList(cmd *cobra.Command, revocationListFile, signatureFile, publicRootKeyFile string) error {
+	// Read revocation list file
+	rlBytes, err := os.ReadFile(revocationListFile)
+	if err != nil {
+		return fmt.Errorf("failed to read revocation list file: %w", err)
+	}
+
+	// Read signature file
+	sigBytes, err := os.ReadFile(signatureFile)
+	if err != nil {
+		return fmt.Errorf("failed to read signature file: %w", err)
+	}
+
+	// Read public root key file
+	pubKeyPEM, err := os.ReadFile(publicRootKeyFile)
+	if err != nil {
+		return fmt.Errorf("failed to read public root key file: %w", err)
+	}
+
+	// Parse public root key
+	publicKey, err := reposign.ParseRootPublicKey(pubKeyPEM)
+	if err != nil {
+		return fmt.Errorf("failed to parse public root key: %w", err)
+	}
+
+	// Parse signature
+	signature, err := reposign.ParseSignature(sigBytes)
+	if err != nil {
+		return fmt.Errorf("failed to parse signature: %w", err)
+	}
+
+	// Validate revocation list
+	rl, err := reposign.ValidateRevocationList([]reposign.PublicKey{publicKey}, rlBytes, *signature)
+	if err != nil {
+		return fmt.Errorf("failed to validate revocation list: %w", err)
+	}
+
+	// Display results
+	cmd.Println("✅ Revocation list signature is valid")
+	cmd.Printf("Last Updated: %s\n", rl.LastUpdated.Format(time.RFC3339))
+	cmd.Printf("Expires At: %s\n", rl.ExpiresAt.Format(time.RFC3339))
+	cmd.Printf("Number of revoked keys: %d\n", len(rl.Revoked))
+
+	if len(rl.Revoked) > 0 {
+		cmd.Println("\nRevoked Keys:")
+		for keyID, revokedTime := range rl.Revoked {
+			cmd.Printf("  - %s (revoked at: %s)\n", keyID, revokedTime.Format(time.RFC3339))
+		}
+	}
+
+	return nil
+}
+
+func writeOutputFiles(rlPath, sigPath string, rlBytes, sigBytes []byte) error {
+	if err := os.WriteFile(rlPath, rlBytes, 0o600); err != nil {
+		return fmt.Errorf("failed to write revocation list file: %w", err)
+	}
+	if err := os.WriteFile(sigPath, sigBytes, 0o600); err != nil {
+		return fmt.Errorf("failed to write signature file: %w", err)
+	}
+	return nil
+}

client/cmd/signer/rootkey.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/spf13/cobra"
+
+	"github.com/netbirdio/netbird/client/internal/updatemanager/reposign"
+)
+
+var (
+	privKeyFile    string
+	pubKeyFile     string
+	rootExpiration time.Duration
+)
+
+var createRootKeyCmd = &cobra.Command{
+	Use:          "create-root-key",
+	Short:        "Create a new root key pair",
+	Long:         `Create a new root key pair and specify an expiration time for it.`,
+	SilenceUsage: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		// Validate expiration
+		if rootExpiration <= 0 {
+			return fmt.Errorf("--expiration must be a positive duration (e.g., 720h, 365d, 8760h)")
+		}
+
+		// Run main logic
+		if err := handleGenerateRootKey(cmd, privKeyFile, pubKeyFile, rootExpiration); err != nil {
+			return fmt.Errorf("failed to generate root key: %w", err)
+		}
+		return nil
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(createRootKeyCmd)
+	createRootKeyCmd.Flags().StringVar(&privKeyFile, "priv-key-file", "", "Path to output private key file")
+	createRootKeyCmd.Flags().StringVar(&pubKeyFile, "pub-key-file", "", "Path to output public key file")
+	createRootKeyCmd.Flags().DurationVar(&rootExpiration, "expiration", 0, "Expiration time for the root key (e.g., 720h,)")
+
+	if err := createRootKeyCmd.MarkFlagRequired("priv-key-file"); err != nil {
+		panic(err)
+	}
+	if err := createRootKeyCmd.MarkFlagRequired("pub-key-file"); err != nil {
+		panic(err)
+	}
+	if err := createRootKeyCmd.MarkFlagRequired("expiration"); err != nil {
+		panic(err)
+	}
+}
+
+func handleGenerateRootKey(cmd *cobra.Command, privKeyFile, pubKeyFile string, expiration time.Duration) error {
+	rk, privPEM, pubPEM, err := reposign.GenerateRootKey(expiration)
+	if err != nil {
+		return fmt.Errorf("generate root key: %w", err)
+	}
+
+	// Write private key
+	if err := os.WriteFile(privKeyFile, privPEM, 0o600); err != nil {
+		return fmt.Errorf("write private key file (%s): %w", privKeyFile, err)
+	}
+
+	// Write public key
+	if err := os.WriteFile(pubKeyFile, pubPEM, 0o600); err != nil {
+		return fmt.Errorf("write public key file (%s): %w", pubKeyFile, err)
+	}
+
+	cmd.Printf("%s\n\n", rk.String())
+	cmd.Printf("✅ Root key pair generated successfully.\n")
+	return nil
+}

client/cmd/ssh.go

@@ -51,6 +51,7 @@ var (
 	identityFile          string
 	skipCachedToken       bool
 	requestPTY            bool
+	sshNoBrowser          bool
 )
 
 var (
@@ -81,6 +82,7 @@ func init() {
 	sshCmd.PersistentFlags().StringVarP(&identityFile, "identity", "i", "", "Path to SSH private key file (deprecated)")
 	_ = sshCmd.PersistentFlags().MarkDeprecated("identity", "this flag is no longer used")
 	sshCmd.PersistentFlags().BoolVar(&skipCachedToken, "no-cache", false, "Skip cached JWT token and force fresh authentication")
+	sshCmd.PersistentFlags().BoolVar(&sshNoBrowser, noBrowserFlag, false, noBrowserDesc)
 
 	sshCmd.PersistentFlags().StringArrayP("L", "L", []string{}, "Local port forwarding [bind_address:]port:host:hostport")
 	sshCmd.PersistentFlags().StringArrayP("R", "R", []string{}, "Remote port forwarding [bind_address:]port:host:hostport")
@@ -185,6 +187,21 @@ func getEnvOrDefault(flagName, defaultValue string) string {
 	return defaultValue
 }
 
+// getBoolEnvOrDefault checks for boolean environment variables with WT_ and NB_ prefixes
+func getBoolEnvOrDefault(flagName string, defaultValue bool) bool {
+	if envValue := os.Getenv("WT_" + flagName); envValue != "" {
+		if parsed, err := strconv.ParseBool(envValue); err == nil {
+			return parsed
+		}
+	}
+	if envValue := os.Getenv("NB_" + flagName); envValue != "" {
+		if parsed, err := strconv.ParseBool(envValue); err == nil {
+			return parsed
+		}
+	}
+	return defaultValue
+}
+
 // resetSSHGlobals sets SSH globals to their default values
 func resetSSHGlobals() {
 	port = sshserver.DefaultSSHPort
@@ -196,6 +213,7 @@ func resetSSHGlobals() {
 	strictHostKeyChecking = true
 	knownHostsFile = ""
 	identityFile = ""
+	sshNoBrowser = false
 }
 
 // parseCustomSSHFlags extracts -L, -R flags and returns filtered args
@@ -370,6 +388,7 @@ type sshFlags struct {
 	KnownHostsFile        string
 	IdentityFile          string
 	SkipCachedToken       bool
+	NoBrowser             bool
 	ConfigPath            string
 	LogLevel              string
 	LocalForwards         []string
@@ -381,6 +400,7 @@ type sshFlags struct {
 func createSSHFlagSet() (*flag.FlagSet, *sshFlags) {
 	defaultConfigPath := getEnvOrDefault("CONFIG", configPath)
 	defaultLogLevel := getEnvOrDefault("LOG_LEVEL", logLevel)
+	defaultNoBrowser := getBoolEnvOrDefault("NO_BROWSER", false)
 
 	fs := flag.NewFlagSet("ssh-flags", flag.ContinueOnError)
 	fs.SetOutput(nil)
@@ -401,6 +421,7 @@ func createSSHFlagSet() (*flag.FlagSet, *sshFlags) {
 	fs.StringVar(&flags.IdentityFile, "i", "", "Path to SSH private key file")
 	fs.StringVar(&flags.IdentityFile, "identity", "", "Path to SSH private key file")
 	fs.BoolVar(&flags.SkipCachedToken, "no-cache", false, "Skip cached JWT token and force fresh authentication")
+	fs.BoolVar(&flags.NoBrowser, "no-browser", defaultNoBrowser, noBrowserDesc)
 
 	fs.StringVar(&flags.ConfigPath, "c", defaultConfigPath, "Netbird config file location")
 	fs.StringVar(&flags.ConfigPath, "config", defaultConfigPath, "Netbird config file location")
@@ -449,6 +470,7 @@ func validateSSHArgsWithoutFlagParsing(_ *cobra.Command, args []string) error {
 	knownHostsFile = flags.KnownHostsFile
 	identityFile = flags.IdentityFile
 	skipCachedToken = flags.SkipCachedToken
+	sshNoBrowser = flags.NoBrowser
 
 	if flags.ConfigPath != getEnvOrDefault("CONFIG", configPath) {
 		configPath = flags.ConfigPath
@@ -508,6 +530,7 @@ func runSSH(ctx context.Context, addr string, cmd *cobra.Command) error {
 		DaemonAddr:         daemonAddr,
 		SkipCachedToken:    skipCachedToken,
 		InsecureSkipVerify: !strictHostKeyChecking,
+		NoBrowser:          sshNoBrowser,
 	})
 
 	if err != nil {
@@ -749,7 +772,9 @@ func sshProxyFn(cmd *cobra.Command, args []string) error {
 	if firstLogFile := util.FindFirstLogPath(logFiles); firstLogFile != "" && firstLogFile != defaultLogFile {
 		logOutput = firstLogFile
 	}
-	if err := util.InitLog(logLevel, logOutput); err != nil {
+
+	proxyLogLevel := getEnvOrDefault("LOG_LEVEL", logLevel)
+	if err := util.InitLog(proxyLogLevel, logOutput); err != nil {
 		return fmt.Errorf("init log: %w", err)
 	}
 
@@ -761,7 +786,15 @@ func sshProxyFn(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("invalid port: %s", portStr)
 	}
 
-	proxy, err := sshproxy.New(daemonAddr, host, port, cmd.ErrOrStderr())
+	// Check env var for browser setting since this command is invoked via SSH ProxyCommand
+	// where command-line flags cannot be passed. Default is to open browser.
+	noBrowser := getBoolEnvOrDefault("NO_BROWSER", false)
+	var browserOpener func(string) error
+	if !noBrowser {
+		browserOpener = util.OpenBrowser
+	}
+
+	proxy, err := sshproxy.New(daemonAddr, host, port, cmd.ErrOrStderr(), browserOpener)
 	if err != nil {
 		return fmt.Errorf("create SSH proxy: %w", err)
 	}
@@ -788,7 +821,8 @@ var sshDetectCmd = &cobra.Command{
 }
 
 func sshDetectFn(cmd *cobra.Command, args []string) error {
-	if err := util.InitLog(logLevel, "console"); err != nil {
+	detectLogLevel := getEnvOrDefault("LOG_LEVEL", logLevel)
+	if err := util.InitLog(detectLogLevel, "console"); err != nil {
 		os.Exit(detection.ServerTypeRegular.ExitCode())
 	}
 
@@ -797,15 +831,21 @@ func sshDetectFn(cmd *cobra.Command, args []string) error {
 
 	port, err := strconv.Atoi(portStr)
 	if err != nil {
+		log.Debugf("invalid port %q: %v", portStr, err)
 		os.Exit(detection.ServerTypeRegular.ExitCode())
 	}
 
-	dialer := &net.Dialer{Timeout: detection.Timeout}
-	serverType, err := detection.DetectSSHServerType(cmd.Context(), dialer, host, port)
+	ctx, cancel := context.WithTimeout(cmd.Context(), detection.DefaultTimeout)
+
+	dialer := &net.Dialer{}
+	serverType, err := detection.DetectSSHServerType(ctx, dialer, host, port)
 	if err != nil {
+		log.Debugf("SSH server detection failed: %v", err)
+		cancel()
 		os.Exit(detection.ServerTypeRegular.ExitCode())
 	}
 
+	cancel()
 	os.Exit(serverType.ExitCode())
 	return nil
 }

client/cmd/testutil_test.go

@@ -15,6 +15,8 @@ import (
 
 	"github.com/netbirdio/netbird/management/internals/controllers/network_map/controller"
 	"github.com/netbirdio/netbird/management/internals/controllers/network_map/update_channel"
+	"github.com/netbirdio/netbird/management/internals/modules/peers"
+	"github.com/netbirdio/netbird/management/internals/modules/peers/ephemeral/manager"
 	nbgrpc "github.com/netbirdio/netbird/management/internals/shared/grpc"
 
 	clientProto "github.com/netbirdio/netbird/client/proto"
@@ -24,8 +26,6 @@ import (
 	"github.com/netbirdio/netbird/management/server/activity"
 	"github.com/netbirdio/netbird/management/server/groups"
 	"github.com/netbirdio/netbird/management/server/integrations/port_forwarding"
-	"github.com/netbirdio/netbird/management/server/peers"
-	"github.com/netbirdio/netbird/management/server/peers/ephemeral/manager"
 	"github.com/netbirdio/netbird/management/server/permissions"
 	"github.com/netbirdio/netbird/management/server/settings"
 	"github.com/netbirdio/netbird/management/server/store"
@@ -116,15 +116,18 @@ func startManagement(t *testing.T, config *config.Config, testFile string) (*grp
 	ctx := context.Background()
 	updateManager := update_channel.NewPeersUpdateManager(metrics)
 	requestBuffer := mgmt.NewAccountRequestBuffer(ctx, store)
-	networkMapController := controller.NewController(ctx, store, metrics, updateManager, requestBuffer, mgmt.MockIntegratedValidator{}, settingsMockManager, "netbird.cloud", port_forwarding.NewControllerMock(), config)
+	networkMapController := controller.NewController(ctx, store, metrics, updateManager, requestBuffer, mgmt.MockIntegratedValidator{}, settingsMockManager, "netbird.cloud", port_forwarding.NewControllerMock(), manager.NewEphemeralManager(store, peersmanager), config)
 
 	accountManager, err := mgmt.BuildManager(context.Background(), config, store, networkMapController, nil, "", eventStore, nil, false, iv, metrics, port_forwarding.NewControllerMock(), settingsMockManager, permissionsManagerMock, false)
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	secretsManager := nbgrpc.NewTimeBasedAuthSecretsManager(updateManager, config.TURNConfig, config.Relay, settingsMockManager, groupsManager)
-	mgmtServer, err := nbgrpc.NewServer(config, accountManager, settingsMockManager, updateManager, secretsManager, nil, &manager.EphemeralManager{}, nil, &mgmt.MockIntegratedValidator{}, networkMapController)
+	secretsManager, err := nbgrpc.NewTimeBasedAuthSecretsManager(updateManager, config.TURNConfig, config.Relay, settingsMockManager, groupsManager)
+	if err != nil {
+		t.Fatal(err)
+	}
+	mgmtServer, err := nbgrpc.NewServer(config, accountManager, settingsMockManager, secretsManager, nil, nil, &mgmt.MockIntegratedValidator{}, networkMapController)
 	if err != nil {
 		t.Fatal(err)
 	}

client/cmd/up.go

@@ -197,7 +197,7 @@ func runInForegroundMode(ctx context.Context, cmd *cobra.Command, activeProf *pr
 	r := peer.NewRecorder(config.ManagementURL.String())
 	r.GetFullStatus()
 
-	connectClient := internal.NewConnectClient(ctx, config, r)
+	connectClient := internal.NewConnectClient(ctx, config, r, false)
 	SetupDebugHandler(ctx, config, r, connectClient, "")
 
 	return connectClient.Run(nil)

client/cmd/update.go

@@ -0,0 +1,13 @@
+//go:build !windows && !darwin
+
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var updateCmd *cobra.Command
+
+func isUpdateBinary() bool {
+	return false
+}

client/cmd/update_supported.go

@@ -0,0 +1,75 @@
+//go:build windows || darwin
+
+package cmd
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+
+	"github.com/netbirdio/netbird/client/internal/updatemanager/installer"
+	"github.com/netbirdio/netbird/util"
+)
+
+var (
+	updateCmd = &cobra.Command{
+		Use:   "update",
+		Short: "Update the NetBird client application",
+		RunE:  updateFunc,
+	}
+
+	tempDirFlag    string
+	installerFile  string
+	serviceDirFlag string
+	dryRunFlag     bool
+)
+
+func init() {
+	updateCmd.Flags().StringVar(&tempDirFlag, "temp-dir", "", "temporary dir")
+	updateCmd.Flags().StringVar(&installerFile, "installer-file", "", "installer file")
+	updateCmd.Flags().StringVar(&serviceDirFlag, "service-dir", "", "service directory")
+	updateCmd.Flags().BoolVar(&dryRunFlag, "dry-run", false, "dry run the update process without making any changes")
+}
+
+// isUpdateBinary checks if the current executable is named "update" or "update.exe"
+func isUpdateBinary() bool {
+	// Remove extension for cross-platform compatibility
+	execPath, err := os.Executable()
+	if err != nil {
+		return false
+	}
+	baseName := filepath.Base(execPath)
+	name := strings.TrimSuffix(baseName, filepath.Ext(baseName))
+
+	return name == installer.UpdaterBinaryNameWithoutExtension()
+}
+
+func updateFunc(cmd *cobra.Command, args []string) error {
+	if err := setupLogToFile(tempDirFlag); err != nil {
+		return err
+	}
+
+	log.Infof("updater started: %s", serviceDirFlag)
+	updater := installer.NewWithDir(tempDirFlag)
+	if err := updater.Setup(context.Background(), dryRunFlag, installerFile, serviceDirFlag); err != nil {
+		log.Errorf("failed to update application: %v", err)
+		return err
+	}
+	return nil
+}
+
+func setupLogToFile(dir string) error {
+	logFile := filepath.Join(dir, installer.LogFile)
+
+	if _, err := os.Stat(logFile); err == nil {
+		if err := os.Remove(logFile); err != nil {
+			log.Errorf("failed to remove existing log file: %v\n", err)
+		}
+	}
+
+	return util.InitLog(logLevel, util.LogConsole, logFile)
+}

client/embed/embed.go

@@ -173,7 +173,7 @@ func (c *Client) Start(startCtx context.Context) error {
 	}
 
 	recorder := peer.NewRecorder(c.config.ManagementURL.String())
-	client := internal.NewConnectClient(ctx, c.config, recorder)
+	client := internal.NewConnectClient(ctx, c.config, recorder, false)
 
 	// either startup error (permanent backoff err) or nil err (successful engine up)
 	// TODO: make after-startup backoff err available

client/firewall/nftables/router_linux.go

@@ -27,7 +27,11 @@ import (
 )
 
 const (
-	tableNat               = "nat"
+	tableNat      = "nat"
+	tableMangle   = "mangle"
+	tableRaw      = "raw"
+	tableSecurity = "security"
+
 	chainNameNatPrerouting = "PREROUTING"
 	chainNameRoutingFw     = "netbird-rt-fwd"
 	chainNameRoutingNat    = "netbird-rt-postrouting"
@@ -91,11 +95,7 @@ func newRouter(workTable *nftables.Table, wgIface iFaceMapper, mtu uint16) (*rou
 	var err error
 	r.filterTable, err = r.loadFilterTable()
 	if err != nil {
-		if errors.Is(err, errFilterTableNotFound) {
-			log.Warnf("table 'filter' not found for forward rules")
-		} else {
-			return nil, fmt.Errorf("load filter table: %w", err)
-		}
+		log.Debugf("ip filter table not found: %v", err)
 	}
 
 	return r, nil
@@ -175,7 +175,7 @@ func (r *router) removeNatPreroutingRules() error {
 func (r *router) loadFilterTable() (*nftables.Table, error) {
 	tables, err := r.conn.ListTablesOfFamily(nftables.TableFamilyIPv4)
 	if err != nil {
-		return nil, fmt.Errorf("unable to list tables: %v", err)
+		return nil, fmt.Errorf("list tables: %w", err)
 	}
 
 	for _, table := range tables {
@@ -187,14 +187,39 @@ func (r *router) loadFilterTable() (*nftables.Table, error) {
 	return nil, errFilterTableNotFound
 }
 
+func hookName(hook *nftables.ChainHook) string {
+	if hook == nil {
+		return "unknown"
+	}
+	switch *hook {
+	case *nftables.ChainHookForward:
+		return chainNameForward
+	case *nftables.ChainHookInput:
+		return chainNameInput
+	default:
+		return fmt.Sprintf("hook(%d)", *hook)
+	}
+}
+
+func familyName(family nftables.TableFamily) string {
+	switch family {
+	case nftables.TableFamilyIPv4:
+		return "ip"
+	case nftables.TableFamilyIPv6:
+		return "ip6"
+	case nftables.TableFamilyINet:
+		return "inet"
+	default:
+		return fmt.Sprintf("family(%d)", family)
+	}
+}
+
 func (r *router) createContainers() error {
 	r.chains[chainNameRoutingFw] = r.conn.AddChain(&nftables.Chain{
 		Name:  chainNameRoutingFw,
 		Table: r.workTable,
 	})
 
-	insertReturnTrafficRule(r.conn, r.workTable, r.chains[chainNameRoutingFw])
-
 	prio := *nftables.ChainPriorityNATSource - 1
 	r.chains[chainNameRoutingNat] = r.conn.AddChain(&nftables.Chain{
 		Name:     chainNameRoutingNat,
@@ -236,9 +261,12 @@ func (r *router) createContainers() error {
 		Type:     nftables.ChainTypeFilter,
 	})
 
-	// Add the single NAT rule that matches on mark
-	if err := r.addPostroutingRules(); err != nil {
-		return fmt.Errorf("add single nat rule: %v", err)
+	insertReturnTrafficRule(r.conn, r.workTable, r.chains[chainNameRoutingFw])
+
+	r.addPostroutingRules()
+
+	if err := r.conn.Flush(); err != nil {
+		return fmt.Errorf("initialize tables: %v", err)
 	}
 
 	if err := r.addMSSClampingRules(); err != nil {
@@ -250,11 +278,7 @@ func (r *router) createContainers() error {
 	}
 
 	if err := r.refreshRulesMap(); err != nil {
-		log.Errorf("failed to clean up rules from FORWARD chain: %s", err)
-	}
-
-	if err := r.conn.Flush(); err != nil {
-		return fmt.Errorf("initialize tables: %v", err)
+		log.Errorf("failed to refresh rules: %s", err)
 	}
 
 	return nil
@@ -695,7 +719,7 @@ func (r *router) addNatRule(pair firewall.RouterPair) error {
 }
 
 // addPostroutingRules adds the masquerade rules
-func (r *router) addPostroutingRules() error {
+func (r *router) addPostroutingRules() {
 	// First masquerade rule for traffic coming in from WireGuard interface
 	exprs := []expr.Any{
 		// Match on the first fwmark
@@ -761,8 +785,6 @@ func (r *router) addPostroutingRules() error {
 		Chain: r.chains[chainNameRoutingNat],
 		Exprs: exprs2,
 	})
-
-	return nil
 }
 
 // addMSSClampingRules adds MSS clamping rules to prevent fragmentation for forwarded traffic.
@@ -839,7 +861,7 @@ func (r *router) addMSSClampingRules() error {
 		Exprs: exprsOut,
 	})
 
-	return nil
+	return r.conn.Flush()
 }
 
 // addLegacyRouteRule adds a legacy routing rule for mgmt servers pre route acls
@@ -939,8 +961,21 @@ func (r *router) RemoveAllLegacyRouteRules() error {
 // In case the FORWARD policy is set to "drop", we add an established/related rule to allow return traffic for the inbound rule.
 // This method also adds INPUT chain rules to allow traffic to the local interface.
 func (r *router) acceptForwardRules() error {
+	var merr *multierror.Error
+
+	if err := r.acceptFilterTableRules(); err != nil {
+		merr = multierror.Append(merr, err)
+	}
+
+	if err := r.acceptExternalChainsRules(); err != nil {
+		merr = multierror.Append(merr, fmt.Errorf("add accept rules to external chains: %w", err))
+	}
+
+	return nberrors.FormatErrorOrNil(merr)
+}
+
+func (r *router) acceptFilterTableRules() error {
 	if r.filterTable == nil {
-		log.Debugf("table 'filter' not found for forward rules, skipping accept rules")
 		return nil
 	}
 
@@ -953,11 +988,11 @@ func (r *router) acceptForwardRules() error {
 	// Try iptables first and fallback to nftables if iptables is not available
 	ipt, err := iptables.New()
 	if err != nil {
-		// filter table exists but iptables is not
+		// iptables is not available but the filter table exists
 		log.Warnf("Will use nftables to manipulate the filter table because iptables is not available: %v", err)
 
 		fw = "nftables"
-		return r.acceptFilterRulesNftables()
+		return r.acceptFilterRulesNftables(r.filterTable)
 	}
 
 	return r.acceptFilterRulesIptables(ipt)
@@ -968,7 +1003,7 @@ func (r *router) acceptFilterRulesIptables(ipt *iptables.IPTables) error {
 
 	for _, rule := range r.getAcceptForwardRules() {
 		if err := ipt.Insert("filter", chainNameForward, 1, rule...); err != nil {
-			merr = multierror.Append(err, fmt.Errorf("add iptables forward rule: %v", err))
+			merr = multierror.Append(merr, fmt.Errorf("add iptables forward rule: %v", err))
 		} else {
 			log.Debugf("added iptables forward rule: %v", rule)
 		}
@@ -976,7 +1011,7 @@ func (r *router) acceptFilterRulesIptables(ipt *iptables.IPTables) error {
 
 	inputRule := r.getAcceptInputRule()
 	if err := ipt.Insert("filter", chainNameInput, 1, inputRule...); err != nil {
-		merr = multierror.Append(err, fmt.Errorf("add iptables input rule: %v", err))
+		merr = multierror.Append(merr, fmt.Errorf("add iptables input rule: %v", err))
 	} else {
 		log.Debugf("added iptables input rule: %v", inputRule)
 	}
@@ -996,18 +1031,70 @@ func (r *router) getAcceptInputRule() []string {
 	return []string{"-i", r.wgIface.Name(), "-j", "ACCEPT"}
 }
 
-func (r *router) acceptFilterRulesNftables() error {
+// acceptFilterRulesNftables adds accept rules to the ip filter table using nftables.
+// This is used when iptables is not available.
+func (r *router) acceptFilterRulesNftables(table *nftables.Table) error {
 	intf := ifname(r.wgIface.Name())
 
+	forwardChain := &nftables.Chain{
+		Name:     chainNameForward,
+		Table:    table,
+		Type:     nftables.ChainTypeFilter,
+		Hooknum:  nftables.ChainHookForward,
+		Priority: nftables.ChainPriorityFilter,
+	}
+	r.insertForwardAcceptRules(forwardChain, intf)
+
+	inputChain := &nftables.Chain{
+		Name:     chainNameInput,
+		Table:    table,
+		Type:     nftables.ChainTypeFilter,
+		Hooknum:  nftables.ChainHookInput,
+		Priority: nftables.ChainPriorityFilter,
+	}
+	r.insertInputAcceptRule(inputChain, intf)
+
+	return r.conn.Flush()
+}
+
+// acceptExternalChainsRules adds accept rules to external chains (non-netbird, non-iptables tables).
+// It dynamically finds chains at call time to handle chains that may have been created after startup.
+func (r *router) acceptExternalChainsRules() error {
+	chains := r.findExternalChains()
+	if len(chains) == 0 {
+		return nil
+	}
+
+	intf := ifname(r.wgIface.Name())
+
+	for _, chain := range chains {
+		if chain.Hooknum == nil {
+			log.Debugf("skipping external chain %s/%s: hooknum is nil", chain.Table.Name, chain.Name)
+			continue
+		}
+
+		log.Debugf("adding accept rules to external %s chain: %s %s/%s",
+			hookName(chain.Hooknum), familyName(chain.Table.Family), chain.Table.Name, chain.Name)
+
+		switch *chain.Hooknum {
+		case *nftables.ChainHookForward:
+			r.insertForwardAcceptRules(chain, intf)
+		case *nftables.ChainHookInput:
+			r.insertInputAcceptRule(chain, intf)
+		}
+	}
+
+	if err := r.conn.Flush(); err != nil {
+		return fmt.Errorf("flush external chain rules: %w", err)
+	}
+
+	return nil
+}
+
+func (r *router) insertForwardAcceptRules(chain *nftables.Chain, intf []byte) {
 	iifRule := &nftables.Rule{
-		Table: r.filterTable,
-		Chain: &nftables.Chain{
-			Name:     chainNameForward,
-			Table:    r.filterTable,
-			Type:     nftables.ChainTypeFilter,
-			Hooknum:  nftables.ChainHookForward,
-			Priority: nftables.ChainPriorityFilter,
-		},
+		Table: chain.Table,
+		Chain: chain,
 		Exprs: []expr.Any{
 			&expr.Meta{Key: expr.MetaKeyIIFNAME, Register: 1},
 			&expr.Cmp{
@@ -1030,30 +1117,19 @@ func (r *router) acceptFilterRulesNftables() error {
 			Data:     intf,
 		},
 	}
-
 	oifRule := &nftables.Rule{
-		Table: r.filterTable,
-		Chain: &nftables.Chain{
-			Name:     chainNameForward,
-			Table:    r.filterTable,
-			Type:     nftables.ChainTypeFilter,
-			Hooknum:  nftables.ChainHookForward,
-			Priority: nftables.ChainPriorityFilter,
-		},
+		Table:    chain.Table,
+		Chain:    chain,
 		Exprs:    append(oifExprs, getEstablishedExprs(2)...),
 		UserData: []byte(userDataAcceptForwardRuleOif),
 	}
 	r.conn.InsertRule(oifRule)
+}
 
+func (r *router) insertInputAcceptRule(chain *nftables.Chain, intf []byte) {
 	inputRule := &nftables.Rule{
-		Table: r.filterTable,
-		Chain: &nftables.Chain{
-			Name:     chainNameInput,
-			Table:    r.filterTable,
-			Type:     nftables.ChainTypeFilter,
-			Hooknum:  nftables.ChainHookInput,
-			Priority: nftables.ChainPriorityFilter,
-		},
+		Table: chain.Table,
+		Chain: chain,
 		Exprs: []expr.Any{
 			&expr.Meta{Key: expr.MetaKeyIIFNAME, Register: 1},
 			&expr.Cmp{
@@ -1067,32 +1143,44 @@ func (r *router) acceptFilterRulesNftables() error {
 		UserData: []byte(userDataAcceptInputRule),
 	}
 	r.conn.InsertRule(inputRule)
-
-	return nil
 }
 
 func (r *router) removeAcceptFilterRules() error {
+	var merr *multierror.Error
+
+	if err := r.removeFilterTableRules(); err != nil {
+		merr = multierror.Append(merr, err)
+	}
+
+	if err := r.removeExternalChainsRules(); err != nil {
+		merr = multierror.Append(merr, fmt.Errorf("remove external chain rules: %w", err))
+	}
+
+	return nberrors.FormatErrorOrNil(merr)
+}
+
+func (r *router) removeFilterTableRules() error {
 	if r.filterTable == nil {
 		return nil
 	}
 
 	ipt, err := iptables.New()
 	if err != nil {
-		log.Warnf("Will use nftables to manipulate the filter table because iptables is not available: %v", err)
-		return r.removeAcceptFilterRulesNftables()
+		log.Debugf("iptables not available, using nftables to remove filter rules: %v", err)
+		return r.removeAcceptRulesFromTable(r.filterTable)
 	}
 
 	return r.removeAcceptFilterRulesIptables(ipt)
 }
 
-func (r *router) removeAcceptFilterRulesNftables() error {
-	chains, err := r.conn.ListChainsOfTableFamily(nftables.TableFamilyIPv4)
+func (r *router) removeAcceptRulesFromTable(table *nftables.Table) error {
+	chains, err := r.conn.ListChainsOfTableFamily(table.Family)
 	if err != nil {
 		return fmt.Errorf("list chains: %v", err)
 	}
 
 	for _, chain := range chains {
-		if chain.Table.Name != r.filterTable.Name {
+		if chain.Table.Name != table.Name {
 			continue
 		}
 
@@ -1100,27 +1188,101 @@ func (r *router) removeAcceptFilterRulesNftables() error {
 			continue
 		}
 
-		rules, err := r.conn.GetRules(r.filterTable, chain)
+		if err := r.removeAcceptRulesFromChain(table, chain); err != nil {
+			return err
+		}
+	}
+
+	return r.conn.Flush()
+}
+
+func (r *router) removeAcceptRulesFromChain(table *nftables.Table, chain *nftables.Chain) error {
+	rules, err := r.conn.GetRules(table, chain)
+	if err != nil {
+		return fmt.Errorf("get rules from %s/%s: %v", table.Name, chain.Name, err)
+	}
+
+	for _, rule := range rules {
+		if bytes.Equal(rule.UserData, []byte(userDataAcceptForwardRuleIif)) ||
+			bytes.Equal(rule.UserData, []byte(userDataAcceptForwardRuleOif)) ||
+			bytes.Equal(rule.UserData, []byte(userDataAcceptInputRule)) {
+			if err := r.conn.DelRule(rule); err != nil {
+				return fmt.Errorf("delete rule from %s/%s: %v", table.Name, chain.Name, err)
+			}
+		}
+	}
+	return nil
+}
+
+// removeExternalChainsRules removes our accept rules from all external chains.
+// This is deterministic - it scans for chains at removal time rather than relying on saved state,
+// ensuring cleanup works even after a crash or if chains changed.
+func (r *router) removeExternalChainsRules() error {
+	chains := r.findExternalChains()
+	if len(chains) == 0 {
+		return nil
+	}
+
+	for _, chain := range chains {
+		if err := r.removeAcceptRulesFromChain(chain.Table, chain); err != nil {
+			log.Warnf("remove rules from external chain %s/%s: %v", chain.Table.Name, chain.Name, err)
+		}
+	}
+
+	return r.conn.Flush()
+}
+
+// findExternalChains scans for chains from non-netbird tables that have FORWARD or INPUT hooks.
+// This is used both at startup (to know where to add rules) and at cleanup (to ensure deterministic removal).
+func (r *router) findExternalChains() []*nftables.Chain {
+	var chains []*nftables.Chain
+
+	families := []nftables.TableFamily{nftables.TableFamilyIPv4, nftables.TableFamilyINet}
+
+	for _, family := range families {
+		allChains, err := r.conn.ListChainsOfTableFamily(family)
 		if err != nil {
-			return fmt.Errorf("get rules: %v", err)
+			log.Debugf("list chains for family %d: %v", family, err)
+			continue
 		}
 
-		for _, rule := range rules {
-			if bytes.Equal(rule.UserData, []byte(userDataAcceptForwardRuleIif)) ||
-				bytes.Equal(rule.UserData, []byte(userDataAcceptForwardRuleOif)) ||
-				bytes.Equal(rule.UserData, []byte(userDataAcceptInputRule)) {
-				if err := r.conn.DelRule(rule); err != nil {
-					return fmt.Errorf("delete rule: %v", err)
-				}
+		for _, chain := range allChains {
+			if r.isExternalChain(chain) {
+				chains = append(chains, chain)
 			}
 		}
 	}
 
-	if err := r.conn.Flush(); err != nil {
-		return fmt.Errorf(flushError, err)
+	return chains
+}
+
+func (r *router) isExternalChain(chain *nftables.Chain) bool {
+	if r.workTable != nil && chain.Table.Name == r.workTable.Name {
+		return false
 	}
 
-	return nil
+	// Skip all iptables-managed tables in the ip family
+	if chain.Table.Family == nftables.TableFamilyIPv4 && isIptablesTable(chain.Table.Name) {
+		return false
+	}
+
+	if chain.Type != nftables.ChainTypeFilter {
+		return false
+	}
+
+	if chain.Hooknum == nil {
+		return false
+	}
+
+	return *chain.Hooknum == *nftables.ChainHookForward || *chain.Hooknum == *nftables.ChainHookInput
+}
+
+func isIptablesTable(name string) bool {
+	switch name {
+	case tableNameFilter, tableNat, tableMangle, tableRaw, tableSecurity:
+		return true
+	}
+	return false
 }
 
 func (r *router) removeAcceptFilterRulesIptables(ipt *iptables.IPTables) error {
@@ -1128,13 +1290,13 @@ func (r *router) removeAcceptFilterRulesIptables(ipt *iptables.IPTables) error {
 
 	for _, rule := range r.getAcceptForwardRules() {
 		if err := ipt.DeleteIfExists("filter", chainNameForward, rule...); err != nil {
-			merr = multierror.Append(err, fmt.Errorf("remove iptables forward rule: %v", err))
+			merr = multierror.Append(merr, fmt.Errorf("remove iptables forward rule: %v", err))
 		}
 	}
 
 	inputRule := r.getAcceptInputRule()
 	if err := ipt.DeleteIfExists("filter", chainNameInput, inputRule...); err != nil {
-		merr = multierror.Append(err, fmt.Errorf("remove iptables input rule: %v", err))
+		merr = multierror.Append(merr, fmt.Errorf("remove iptables input rule: %v", err))
 	}
 
 	return nberrors.FormatErrorOrNil(merr)
@@ -1196,7 +1358,7 @@ func (r *router) refreshRulesMap() error {
 	for _, chain := range r.chains {
 		rules, err := r.conn.GetRules(chain.Table, chain)
 		if err != nil {
-			return fmt.Errorf(" unable to list rules: %v", err)
+			return fmt.Errorf("list rules: %w", err)
 		}
 		for _, rule := range rules {
 			if len(rule.UserData) > 0 {

client/iface/device/device_android.go

@@ -3,6 +3,7 @@
 package device
 
 import (
+	"fmt"
 	"strings"
 
 	log "github.com/sirupsen/logrus"
@@ -19,11 +20,12 @@ import (
 
 // WGTunDevice ignore the WGTunDevice interface on Android because the creation of the tun device is different on this platform
 type WGTunDevice struct {
-	address    wgaddr.Address
-	port       int
-	key        string
-	mtu        uint16
-	iceBind    *bind.ICEBind
+	address wgaddr.Address
+	port    int
+	key     string
+	mtu     uint16
+	iceBind *bind.ICEBind
+	// todo: review if we can eliminate the TunAdapter
 	tunAdapter TunAdapter
 	disableDNS bool
 
@@ -32,17 +34,19 @@ type WGTunDevice struct {
 	filteredDevice *FilteredDevice
 	udpMux         *udpmux.UniversalUDPMuxDefault
 	configurer     WGConfigurer
+	renewableTun   *RenewableTUN
 }
 
 func NewTunDevice(address wgaddr.Address, port int, key string, mtu uint16, iceBind *bind.ICEBind, tunAdapter TunAdapter, disableDNS bool) *WGTunDevice {
 	return &WGTunDevice{
-		address:    address,
-		port:       port,
-		key:        key,
-		mtu:        mtu,
-		iceBind:    iceBind,
-		tunAdapter: tunAdapter,
-		disableDNS: disableDNS,
+		address:      address,
+		port:         port,
+		key:          key,
+		mtu:          mtu,
+		iceBind:      iceBind,
+		tunAdapter:   tunAdapter,
+		disableDNS:   disableDNS,
+		renewableTun: NewRenewableTUN(),
 	}
 }
 
@@ -65,14 +69,17 @@ func (t *WGTunDevice) Create(routes []string, dns string, searchDomains []string
 		return nil, err
 	}
 
-	tunDevice, name, err := tun.CreateUnmonitoredTUNFromFD(fd)
+	unmonitoredTUN, name, err := tun.CreateUnmonitoredTUNFromFD(fd)
 	if err != nil {
 		_ = unix.Close(fd)
 		log.Errorf("failed to create Android interface: %s", err)
 		return nil, err
 	}
+
+	t.renewableTun.AddDevice(unmonitoredTUN)
+
 	t.name = name
-	t.filteredDevice = newDeviceFilter(tunDevice)
+	t.filteredDevice = newDeviceFilter(t.renewableTun)
 
 	log.Debugf("attaching to interface %v", name)
 	t.device = device.NewDevice(t.filteredDevice, t.iceBind, device.NewLogger(wgLogLevel(), "[netbird] "))
@@ -104,6 +111,23 @@ func (t *WGTunDevice) Up() (*udpmux.UniversalUDPMuxDefault, error) {
 	return udpMux, nil
 }
 
+func (t *WGTunDevice) RenewTun(fd int) error {
+	if t.device == nil {
+		return fmt.Errorf("device not initialized")
+	}
+
+	unmonitoredTUN, _, err := tun.CreateUnmonitoredTUNFromFD(fd)
+	if err != nil {
+		_ = unix.Close(fd)
+		log.Errorf("failed to renew Android interface: %s", err)
+		return err
+	}
+
+	t.renewableTun.AddDevice(unmonitoredTUN)
+
+	return nil
+}
+
 func (t *WGTunDevice) UpdateAddr(addr wgaddr.Address) error {
 	// todo implement
 	return nil

client/iface/device/device_netstack_android.go

@@ -2,6 +2,13 @@
 
 package device
 
+import "fmt"
+
 func (t *TunNetstackDevice) Create(routes []string, dns string, searchDomains []string) (WGConfigurer, error) {
 	return t.create()
 }
+
+func (t *TunNetstackDevice) RenewTun(fd int) error {
+	// Doesn't make sense in Android for Netstack.
+	return fmt.Errorf("this function has not been implemented in Netstack for Android")
+}

client/iface/device/renewable_tun.go

@@ -0,0 +1,309 @@
+//go:build android
+
+package device
+
+import (
+	"io"
+	"os"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+	"golang.zx2c4.com/wireguard/tun"
+)
+
+// closeAwareDevice wraps a tun.Device along with a flag
+// indicating whether its Close method was called.
+//
+// It also redirects tun.Device's Events() to a separate goroutine
+// and closes it when Close is called.
+//
+// The WaitGroup and CloseOnce fields are used to ensure that the
+// goroutine is awaited and closed only once.
+type closeAwareDevice struct {
+	isClosed atomic.Bool
+	tun.Device
+	closeEventCh chan struct{}
+	wg           sync.WaitGroup
+	closeOnce    sync.Once
+}
+
+func newClosableDevice(tunDevice tun.Device) *closeAwareDevice {
+	return &closeAwareDevice{
+		Device:       tunDevice,
+		isClosed:     atomic.Bool{},
+		closeEventCh: make(chan struct{}),
+	}
+}
+
+// redirectEvents redirects the Events() method of the underlying tun.Device
+// to the given channel (RenewableTUN's events channel).
+func (c *closeAwareDevice) redirectEvents(out chan tun.Event) {
+	c.wg.Add(1)
+	go func() {
+		defer c.wg.Done()
+		for {
+			select {
+			case ev, ok := <-c.Device.Events():
+				if !ok {
+					return
+				}
+
+				if ev == tun.EventDown {
+					continue
+				}
+
+				select {
+				case out <- ev:
+				case <-c.closeEventCh:
+					return
+				}
+			case <-c.closeEventCh:
+				return
+			}
+		}
+	}()
+}
+
+// Close calls the underlying Device's Close method
+// after setting isClosed to true.
+func (c *closeAwareDevice) Close() (err error) {
+	c.closeOnce.Do(func() {
+		c.isClosed.Store(true)
+		close(c.closeEventCh)
+		err = c.Device.Close()
+		c.wg.Wait()
+	})
+
+	return err
+}
+
+func (c *closeAwareDevice) IsClosed() bool {
+	return c.isClosed.Load()
+}
+
+type RenewableTUN struct {
+	devices []*closeAwareDevice
+	mu      sync.Mutex
+	cond    *sync.Cond
+	events  chan tun.Event
+	closed  atomic.Bool
+}
+
+func NewRenewableTUN() *RenewableTUN {
+	r := &RenewableTUN{
+		devices: make([]*closeAwareDevice, 0),
+		mu:      sync.Mutex{},
+		events:  make(chan tun.Event, 16),
+	}
+	r.cond = sync.NewCond(&r.mu)
+	return r
+}
+
+func (r *RenewableTUN) File() *os.File {
+	for {
+		dev := r.peekLast()
+		if dev == nil {
+			if !r.waitForDevice() {
+				return nil
+			}
+			continue
+		}
+
+		file := dev.File()
+
+		if dev.IsClosed() {
+			time.Sleep(1 * time.Millisecond)
+			continue
+		}
+
+		return file
+	}
+}
+
+// Read reads from an underlying tun.Device kept in the r.devices slice.
+// If no device is available, it waits for one to be added via AddDevice().
+//
+// On error, it retries reading from the newest device instead of returning the error
+// if the device is closed; if not, it propagates the error.
+func (r *RenewableTUN) Read(bufs [][]byte, sizes []int, offset int) (n int, err error) {
+	for {
+		dev := r.peekLast()
+		if dev == nil {
+			// wait until AddDevice() signals a new device via cond.Broadcast()
+			if !r.waitForDevice() { // returns false if the renewable TUN itself is closed
+				return 0, io.EOF
+			}
+			continue
+		}
+
+		n, err = dev.Read(bufs, sizes, offset)
+		if err == nil {
+			return n, nil
+		}
+
+		// swap in progress; retry on the newest instead of returning the error
+		if dev.IsClosed() {
+			time.Sleep(1 * time.Millisecond)
+			continue
+		}
+		return n, err // propagate non-swap error
+	}
+}
+
+// Write writes to underlying tun.Device kept in the r.devices slice.
+// If no device is available, it waits for one to be added via AddDevice().
+//
+// On error, it retries writing to the newest device instead of returning the error
+// if the device is closed; if not, it propagates the error.
+func (r *RenewableTUN) Write(bufs [][]byte, offset int) (int, error) {
+	for {
+		dev := r.peekLast()
+		if dev == nil {
+			if !r.waitForDevice() {
+				return 0, io.EOF
+			}
+			continue
+		}
+
+		n, err := dev.Write(bufs, offset)
+		if err == nil {
+			return n, nil
+		}
+
+		if dev.IsClosed() {
+			time.Sleep(1 * time.Millisecond)
+			continue
+		}
+
+		return n, err
+	}
+}
+
+func (r *RenewableTUN) MTU() (int, error) {
+	for {
+		dev := r.peekLast()
+		if dev == nil {
+			if !r.waitForDevice() {
+				return 0, io.EOF
+			}
+			continue
+		}
+		mtu, err := dev.MTU()
+		if err == nil {
+			return mtu, nil
+		}
+		if dev.IsClosed() {
+			time.Sleep(1 * time.Millisecond)
+			continue
+		}
+		return 0, err
+	}
+}
+
+func (r *RenewableTUN) Name() (string, error) {
+	for {
+		dev := r.peekLast()
+		if dev == nil {
+			if !r.waitForDevice() {
+				return "", io.EOF
+			}
+			continue
+		}
+		name, err := dev.Name()
+		if err == nil {
+			return name, nil
+		}
+		if dev.IsClosed() {
+			time.Sleep(1 * time.Millisecond)
+			continue
+		}
+		return "", err
+	}
+}
+
+// Events returns a channel that is fed events from the underlying tun.Device's events channel
+// once it is added.
+func (r *RenewableTUN) Events() <-chan tun.Event {
+	return r.events
+}
+
+func (r *RenewableTUN) Close() error {
+	// Attempts to set the RenewableTUN closed flag to true.
+	// If it's already true, returns immediately.
+	if !r.closed.CompareAndSwap(false, true) {
+		return nil // already closed: idempotent
+	}
+	r.mu.Lock()
+	devices := r.devices
+	r.devices = nil
+	r.cond.Broadcast()
+	r.mu.Unlock()
+
+	var lastErr error
+
+	log.Debugf("closing %d devices", len(devices))
+	for _, device := range devices {
+		if err := device.Close(); err != nil {
+			log.Debugf("error closing a device: %v", err)
+			lastErr = err
+		}
+	}
+
+	close(r.events)
+	return lastErr
+}
+
+func (r *RenewableTUN) BatchSize() int {
+	return 1
+}
+
+func (r *RenewableTUN) AddDevice(device tun.Device) {
+	r.mu.Lock()
+	if r.closed.Load() {
+		r.mu.Unlock()
+		_ = device.Close()
+		return
+	}
+
+	var toClose *closeAwareDevice
+	if len(r.devices) > 0 {
+		toClose = r.devices[len(r.devices)-1]
+	}
+
+	cad := newClosableDevice(device)
+	cad.redirectEvents(r.events)
+
+	r.devices = []*closeAwareDevice{cad}
+	r.cond.Broadcast()
+
+	r.mu.Unlock()
+
+	if toClose != nil {
+		if err := toClose.Close(); err != nil {
+			log.Debugf("error closing last device: %v", err)
+		}
+	}
+}
+
+func (r *RenewableTUN) waitForDevice() bool {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
+	for len(r.devices) == 0 && !r.closed.Load() {
+		r.cond.Wait()
+	}
+	return !r.closed.Load()
+}
+
+func (r *RenewableTUN) peekLast() *closeAwareDevice {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
+	if len(r.devices) == 0 {
+		return nil
+	}
+
+	return r.devices[len(r.devices)-1]
+}

client/iface/device_android.go

@@ -21,5 +21,6 @@ type WGTunDevice interface {
 	FilteredDevice() *device.FilteredDevice
 	Device() *wgdevice.Device
 	GetNet() *netstack.Net
+	RenewTun(fd int) error
 	GetICEBind() device.EndpointManager
 }

client/iface/iface_create.go

@@ -24,3 +24,7 @@ func (w *WGIface) Create() error {
 func (w *WGIface) CreateOnAndroid([]string, string, []string) error {
 	return fmt.Errorf("this function has not implemented on non mobile")
 }
+
+func (w *WGIface) RenewTun(fd int) error {
+	return fmt.Errorf("this function has not been implemented on non-android")
+}

client/iface/iface_create_android.go

@@ -6,6 +6,7 @@ import (
 
 // CreateOnAndroid creates a new Wireguard interface, sets a given IP and brings it up.
 // Will reuse an existing one.
+// todo: review does this function really necessary or can we merge it with iOS
 func (w *WGIface) CreateOnAndroid(routes []string, dns string, searchDomains []string) error {
 	w.mu.Lock()
 	defer w.mu.Unlock()
@@ -22,3 +23,9 @@ func (w *WGIface) CreateOnAndroid(routes []string, dns string, searchDomains []s
 func (w *WGIface) Create() error {
 	return fmt.Errorf("this function has not implemented on this platform")
 }
+
+func (w *WGIface) RenewTun(fd int) error {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+	return w.tun.RenewTun(fd)
+}

client/iface/iface_create_darwin.go

@@ -39,3 +39,7 @@ func (w *WGIface) Create() error {
 func (w *WGIface) CreateOnAndroid([]string, string, []string) error {
 	return fmt.Errorf("this function has not implemented on this platform")
 }
+
+func (w *WGIface) RenewTun(fd int) error {
+	return fmt.Errorf("this function has not been implemented on this platform")
+}

client/internal/auth/oauth.go

@@ -60,14 +60,19 @@ func (t TokenInfo) GetTokenToUse() string {
 	return t.AccessToken
 }
 
+func shouldUseDeviceFlow(force bool, isUnixDesktopClient bool) bool {
+	return force || (runtime.GOOS == "linux" || runtime.GOOS == "freebsd") && !isUnixDesktopClient
+}
+
 // NewOAuthFlow initializes and returns the appropriate OAuth flow based on the management configuration
 //
 // It starts by initializing the PKCE.If this process fails, it resorts to the Device Code Flow,
 // and if that also fails, the authentication process is deemed unsuccessful
 //
 // On Linux distros without desktop environment support, it only tries to initialize the Device Code Flow
-func NewOAuthFlow(ctx context.Context, config *profilemanager.Config, isUnixDesktopClient bool, hint string) (OAuthFlow, error) {
-	if (runtime.GOOS == "linux" || runtime.GOOS == "freebsd") && !isUnixDesktopClient {
+// forceDeviceCodeFlow can be used to skip PKCE and go directly to Device Code Flow (e.g., for Android TV)
+func NewOAuthFlow(ctx context.Context, config *profilemanager.Config, isUnixDesktopClient bool, forceDeviceCodeFlow bool, hint string) (OAuthFlow, error) {
+	if shouldUseDeviceFlow(forceDeviceCodeFlow, isUnixDesktopClient) {
 		return authenticateWithDeviceCodeFlow(ctx, config, hint)
 	}
 

client/internal/auth/pkce_flow.go

@@ -13,6 +13,7 @@ import (
 	"net"
 	"net/http"
 	"net/url"
+	"strconv"
 	"strings"
 	"time"
 
@@ -21,6 +22,7 @@ import (
 
 	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/client/internal/templates"
+	"github.com/netbirdio/netbird/shared/management/client/common"
 )
 
 var _ OAuthFlow = &PKCEAuthorizationFlow{}
@@ -46,9 +48,10 @@ type PKCEAuthorizationFlow struct {
 func NewPKCEAuthorizationFlow(config internal.PKCEAuthProviderConfig) (*PKCEAuthorizationFlow, error) {
 	var availableRedirectURL string
 
-	// find the first available redirect URL
+	excludedRanges := getSystemExcludedPortRanges()
+
 	for _, redirectURL := range config.RedirectURLs {
-		if !isRedirectURLPortUsed(redirectURL) {
+		if !isRedirectURLPortUsed(redirectURL, excludedRanges) {
 			availableRedirectURL = redirectURL
 			break
 		}
@@ -102,10 +105,10 @@ func (p *PKCEAuthorizationFlow) RequestAuthInfo(ctx context.Context) (AuthFlowIn
 		oauth2.SetAuthURLParam("audience", p.providerConfig.Audience),
 	}
 	if !p.providerConfig.DisablePromptLogin {
-		if p.providerConfig.LoginFlag.IsPromptLogin() {
+		switch p.providerConfig.LoginFlag {
+		case common.LoginFlagPromptLogin:
 			params = append(params, oauth2.SetAuthURLParam("prompt", "login"))
-		}
-		if p.providerConfig.LoginFlag.IsMaxAge0Login() {
+		case common.LoginFlagMaxAge0:
 			params = append(params, oauth2.SetAuthURLParam("max_age", "0"))
 		}
 	}
@@ -282,15 +285,22 @@ func createCodeChallenge(codeVerifier string) string {
 	return base64.RawURLEncoding.EncodeToString(sha2[:])
 }
 
-// isRedirectURLPortUsed checks if the port used in the redirect URL is in use.
-func isRedirectURLPortUsed(redirectURL string) bool {
+// isRedirectURLPortUsed checks if the port used in the redirect URL is in use or excluded on Windows.
+func isRedirectURLPortUsed(redirectURL string, excludedRanges []excludedPortRange) bool {
 	parsedURL, err := url.Parse(redirectURL)
 	if err != nil {
 		log.Errorf("failed to parse redirect URL: %v", err)
 		return true
 	}
 
-	addr := fmt.Sprintf(":%s", parsedURL.Port())
+	port := parsedURL.Port()
+
+	if isPortInExcludedRange(port, excludedRanges) {
+		log.Warnf("port %s is in Windows excluded port range, skipping", port)
+		return true
+	}
+
+	addr := fmt.Sprintf(":%s", port)
 	conn, err := net.DialTimeout("tcp", addr, 3*time.Second)
 	if err != nil {
 		return false
@@ -304,6 +314,33 @@ func isRedirectURLPortUsed(redirectURL string) bool {
 	return true
 }
 
+// excludedPortRange represents a range of excluded ports.
+type excludedPortRange struct {
+	start int
+	end   int
+}
+
+// isPortInExcludedRange checks if the given port is in any of the excluded ranges.
+func isPortInExcludedRange(port string, excludedRanges []excludedPortRange) bool {
+	if len(excludedRanges) == 0 {
+		return false
+	}
+
+	portNum, err := strconv.Atoi(port)
+	if err != nil {
+		log.Debugf("invalid port number %s: %v", port, err)
+		return false
+	}
+
+	for _, r := range excludedRanges {
+		if portNum >= r.start && portNum <= r.end {
+			return true
+		}
+	}
+
+	return false
+}
+
 func renderPKCEFlowTmpl(w http.ResponseWriter, authError error) {
 	tmpl, err := template.New("pkce-auth-flow").Parse(templates.PKCEAuthMsgTmpl)
 	if err != nil {

client/internal/auth/pkce_flow_other.go

@@ -0,0 +1,8 @@
+//go:build !windows
+
+package auth
+
+// getSystemExcludedPortRanges returns nil on non-Windows platforms.
+func getSystemExcludedPortRanges() []excludedPortRange {
+	return nil
+}

client/internal/auth/pkce_flow_test.go

@@ -2,8 +2,11 @@ package auth
 
 import (
 	"context"
+	"fmt"
+	"net"
 	"testing"
 
+	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
 	"github.com/netbirdio/netbird/client/internal"
@@ -20,22 +23,28 @@ func TestPromptLogin(t *testing.T) {
 		name               string
 		loginFlag          mgm.LoginFlag
 		disablePromptLogin bool
-		expect             string
+		expectContains     []string
 	}{
 		{
-			name:      "Prompt login",
-			loginFlag: mgm.LoginFlagPrompt,
-			expect:    promptLogin,
+			name:           "Prompt login",
+			loginFlag:      mgm.LoginFlagPromptLogin,
+			expectContains: []string{promptLogin},
 		},
 		{
-			name:      "Max age 0 login",
-			loginFlag: mgm.LoginFlagMaxAge0,
-			expect:    maxAge0,
+			name:           "Max age 0",
+			loginFlag:      mgm.LoginFlagMaxAge0,
+			expectContains: []string{maxAge0},
 		},
 		{
 			name:               "Disable prompt login",
-			loginFlag:          mgm.LoginFlagPrompt,
+			loginFlag:          mgm.LoginFlagPromptLogin,
 			disablePromptLogin: true,
+			expectContains:     []string{},
+		},
+		{
+			name:           "None flag should not add parameters",
+			loginFlag:      mgm.LoginFlagNone,
+			expectContains: []string{},
 		},
 	}
 
@@ -50,6 +59,7 @@ func TestPromptLogin(t *testing.T) {
 				RedirectURLs:          []string{"http://127.0.0.1:33992/"},
 				UseIDToken:            true,
 				LoginFlag:             tc.loginFlag,
+				DisablePromptLogin:    tc.disablePromptLogin,
 			}
 			pkce, err := NewPKCEAuthorizationFlow(config)
 			if err != nil {
@@ -60,12 +70,153 @@ func TestPromptLogin(t *testing.T) {
 				t.Fatalf("Failed to request auth info: %v", err)
 			}
 
-			if !tc.disablePromptLogin {
-				require.Contains(t, authInfo.VerificationURIComplete, tc.expect)
-			} else {
-				require.Contains(t, authInfo.VerificationURIComplete, promptLogin)
-				require.NotContains(t, authInfo.VerificationURIComplete, maxAge0)
+			for _, expected := range tc.expectContains {
+				require.Contains(t, authInfo.VerificationURIComplete, expected)
 			}
 		})
 	}
 }
+
+func TestIsPortInExcludedRange(t *testing.T) {
+	tests := []struct {
+		name            string
+		port            string
+		excludedRanges  []excludedPortRange
+		expectedBlocked bool
+	}{
+		{
+			name:            "Port in excluded range",
+			port:            "8080",
+			excludedRanges:  []excludedPortRange{{start: 8000, end: 8100}},
+			expectedBlocked: true,
+		},
+		{
+			name:            "Port at start of range",
+			port:            "8000",
+			excludedRanges:  []excludedPortRange{{start: 8000, end: 8100}},
+			expectedBlocked: true,
+		},
+		{
+			name:            "Port at end of range",
+			port:            "8100",
+			excludedRanges:  []excludedPortRange{{start: 8000, end: 8100}},
+			expectedBlocked: true,
+		},
+		{
+			name:            "Port before range",
+			port:            "7999",
+			excludedRanges:  []excludedPortRange{{start: 8000, end: 8100}},
+			expectedBlocked: false,
+		},
+		{
+			name:            "Port after range",
+			port:            "8101",
+			excludedRanges:  []excludedPortRange{{start: 8000, end: 8100}},
+			expectedBlocked: false,
+		},
+		{
+			name:            "Empty excluded ranges",
+			port:            "8080",
+			excludedRanges:  []excludedPortRange{},
+			expectedBlocked: false,
+		},
+		{
+			name:            "Nil excluded ranges",
+			port:            "8080",
+			excludedRanges:  nil,
+			expectedBlocked: false,
+		},
+		{
+			name: "Multiple ranges - port in second range",
+			port: "9050",
+			excludedRanges: []excludedPortRange{
+				{start: 8000, end: 8100},
+				{start: 9000, end: 9100},
+			},
+			expectedBlocked: true,
+		},
+		{
+			name: "Multiple ranges - port not in any range",
+			port: "8500",
+			excludedRanges: []excludedPortRange{
+				{start: 8000, end: 8100},
+				{start: 9000, end: 9100},
+			},
+			expectedBlocked: false,
+		},
+		{
+			name:            "Invalid port string",
+			port:            "invalid",
+			excludedRanges:  []excludedPortRange{{start: 8000, end: 8100}},
+			expectedBlocked: false,
+		},
+		{
+			name:            "Empty port string",
+			port:            "",
+			excludedRanges:  []excludedPortRange{{start: 8000, end: 8100}},
+			expectedBlocked: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := isPortInExcludedRange(tt.port, tt.excludedRanges)
+			assert.Equal(t, tt.expectedBlocked, result, "Port exclusion check mismatch")
+		})
+	}
+}
+
+func TestIsRedirectURLPortUsed(t *testing.T) {
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	defer func() {
+		_ = listener.Close()
+	}()
+
+	usedPort := listener.Addr().(*net.TCPAddr).Port
+
+	tests := []struct {
+		name           string
+		redirectURL    string
+		excludedRanges []excludedPortRange
+		expectedUsed   bool
+	}{
+		{
+			name:           "Port in excluded range",
+			redirectURL:    "http://127.0.0.1:8080/",
+			excludedRanges: []excludedPortRange{{start: 8000, end: 8100}},
+			expectedUsed:   true,
+		},
+		{
+			name:           "Port actually in use",
+			redirectURL:    fmt.Sprintf("http://127.0.0.1:%d/", usedPort),
+			excludedRanges: nil,
+			expectedUsed:   true,
+		},
+		{
+			name:           "Port not in use and not excluded",
+			redirectURL:    "http://127.0.0.1:65432/",
+			excludedRanges: nil,
+			expectedUsed:   false,
+		},
+		{
+			name:           "Invalid URL without port",
+			redirectURL:    "not-a-valid-url",
+			excludedRanges: nil,
+			expectedUsed:   false,
+		},
+		{
+			name:           "Port excluded even if not in use",
+			redirectURL:    "http://127.0.0.1:8050/",
+			excludedRanges: []excludedPortRange{{start: 8000, end: 8100}},
+			expectedUsed:   true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := isRedirectURLPortUsed(tt.redirectURL, tt.excludedRanges)
+			assert.Equal(t, tt.expectedUsed, result, "Port usage check mismatch")
+		})
+	}
+}

client/internal/auth/pkce_flow_windows.go

@@ -0,0 +1,86 @@
+//go:build windows
+
+package auth
+
+import (
+	"bufio"
+	"fmt"
+	"os/exec"
+	"strconv"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+)
+
+// getSystemExcludedPortRanges retrieves the excluded port ranges from Windows using netsh.
+func getSystemExcludedPortRanges() []excludedPortRange {
+	ranges, err := getExcludedPortRangesFromNetsh()
+	if err != nil {
+		log.Debugf("failed to get Windows excluded port ranges: %v", err)
+		return nil
+	}
+
+	return ranges
+}
+
+// getExcludedPortRangesFromNetsh retrieves excluded port ranges using netsh command.
+func getExcludedPortRangesFromNetsh() ([]excludedPortRange, error) {
+	cmd := exec.Command("netsh", "interface", "ipv4", "show", "excludedportrange", "protocol=tcp")
+	output, err := cmd.Output()
+	if err != nil {
+		return nil, fmt.Errorf("netsh command: %w", err)
+	}
+
+	return parseExcludedPortRanges(string(output))
+}
+
+// parseExcludedPortRanges parses the output of the netsh command to extract port ranges.
+func parseExcludedPortRanges(output string) ([]excludedPortRange, error) {
+	var ranges []excludedPortRange
+	scanner := bufio.NewScanner(strings.NewReader(output))
+
+	foundHeader := false
+	for scanner.Scan() {
+		line := strings.TrimSpace(scanner.Text())
+
+		if strings.Contains(line, "Start Port") && strings.Contains(line, "End Port") {
+			foundHeader = true
+			continue
+		}
+
+		if !foundHeader {
+			continue
+		}
+
+		if strings.Contains(line, "----------") {
+			continue
+		}
+
+		if line == "" {
+			continue
+		}
+
+		fields := strings.Fields(line)
+		if len(fields) < 2 {
+			continue
+		}
+
+		startPort, err := strconv.Atoi(fields[0])
+		if err != nil {
+			continue
+		}
+
+		endPort, err := strconv.Atoi(fields[1])
+		if err != nil {
+			continue
+		}
+
+		ranges = append(ranges, excludedPortRange{start: startPort, end: endPort})
+	}
+
+	if err := scanner.Err(); err != nil {
+		return nil, fmt.Errorf("scan output: %w", err)
+	}
+
+	return ranges, nil
+}

client/internal/auth/pkce_flow_windows_test.go

@@ -0,0 +1,116 @@
+//go:build windows
+
+package auth
+
+import (
+	"fmt"
+	"net"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/netbirdio/netbird/client/internal"
+)
+
+func TestParseExcludedPortRanges(t *testing.T) {
+	tests := []struct {
+		name           string
+		netshOutput    string
+		expectedRanges []excludedPortRange
+		expectError    bool
+	}{
+		{
+			name: "Valid netsh output with multiple ranges",
+			netshOutput: `
+Protocol tcp Dynamic Port Range
+---------------------------------
+Start Port      : 49152
+Number of Ports : 16384
+
+Protocol tcp Excluded Port Ranges
+---------------------------------
+Start Port    End Port
+----------    --------
+     5357        5357      *
+    50000       50059      *
+`,
+			expectedRanges: []excludedPortRange{
+				{start: 5357, end: 5357},
+				{start: 50000, end: 50059},
+			},
+			expectError: false,
+		},
+		{
+			name: "Empty output",
+			netshOutput: `
+Protocol tcp Dynamic Port Range
+---------------------------------
+Start Port      : 49152
+Number of Ports : 16384
+`,
+			expectedRanges: nil,
+			expectError:    false,
+		},
+		{
+			name: "Single range",
+			netshOutput: `
+Protocol tcp Excluded Port Ranges
+---------------------------------
+Start Port    End Port
+----------    --------
+     8080        8090
+`,
+			expectedRanges: []excludedPortRange{
+				{start: 8080, end: 8090},
+			},
+			expectError: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ranges, err := parseExcludedPortRanges(tt.netshOutput)
+
+			if tt.expectError {
+				assert.Error(t, err)
+			} else {
+				require.NoError(t, err)
+				assert.Equal(t, tt.expectedRanges, ranges)
+			}
+		})
+	}
+}
+
+func TestNewPKCEAuthorizationFlow_WithActualExcludedPorts(t *testing.T) {
+	ranges := getSystemExcludedPortRanges()
+	t.Logf("Found %d excluded port ranges on this system", len(ranges))
+
+	listener1, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	defer func() {
+		_ = listener1.Close()
+	}()
+	usedPort1 := listener1.Addr().(*net.TCPAddr).Port
+
+	availablePort := 65432
+
+	config := internal.PKCEAuthProviderConfig{
+		ClientID:              "test-client-id",
+		Audience:              "test-audience",
+		TokenEndpoint:         "https://test-token-endpoint.com/token",
+		Scope:                 "openid email profile",
+		AuthorizationEndpoint: "https://test-auth-endpoint.com/authorize",
+		RedirectURLs: []string{
+			fmt.Sprintf("http://127.0.0.1:%d/", usedPort1),
+			fmt.Sprintf("http://127.0.0.1:%d/", availablePort),
+		},
+		UseIDToken: true,
+	}
+
+	flow, err := NewPKCEAuthorizationFlow(config)
+	require.NoError(t, err)
+	require.NotNil(t, flow)
+	assert.Contains(t, flow.oAuthConfig.RedirectURL, fmt.Sprintf(":%d", availablePort),
+		"Should skip port in use and select available port")
+}

client/internal/connect.go

@@ -24,10 +24,14 @@ import (
 	"github.com/netbirdio/netbird/client/internal/listener"
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/internal/profilemanager"
+	"github.com/netbirdio/netbird/client/internal/statemanager"
 	"github.com/netbirdio/netbird/client/internal/stdnet"
+	"github.com/netbirdio/netbird/client/internal/updatemanager"
+	"github.com/netbirdio/netbird/client/internal/updatemanager/installer"
 	nbnet "github.com/netbirdio/netbird/client/net"
 	cProto "github.com/netbirdio/netbird/client/proto"
 	"github.com/netbirdio/netbird/client/ssh"
+	sshconfig "github.com/netbirdio/netbird/client/ssh/config"
 	"github.com/netbirdio/netbird/client/system"
 	mgm "github.com/netbirdio/netbird/shared/management/client"
 	mgmProto "github.com/netbirdio/netbird/shared/management/proto"
@@ -39,11 +43,13 @@ import (
 )
 
 type ConnectClient struct {
-	ctx            context.Context
-	config         *profilemanager.Config
-	statusRecorder *peer.Status
-	engine         *Engine
-	engineMutex    sync.Mutex
+	ctx                 context.Context
+	config              *profilemanager.Config
+	statusRecorder      *peer.Status
+	doInitialAutoUpdate bool
+
+	engine      *Engine
+	engineMutex sync.Mutex
 
 	persistSyncResponse bool
 }
@@ -52,13 +58,15 @@ func NewConnectClient(
 	ctx context.Context,
 	config *profilemanager.Config,
 	statusRecorder *peer.Status,
+	doInitalAutoUpdate bool,
 
 ) *ConnectClient {
 	return &ConnectClient{
-		ctx:            ctx,
-		config:         config,
-		statusRecorder: statusRecorder,
-		engineMutex:    sync.Mutex{},
+		ctx:                 ctx,
+		config:              config,
+		statusRecorder:      statusRecorder,
+		doInitialAutoUpdate: doInitalAutoUpdate,
+		engineMutex:         sync.Mutex{},
 	}
 }
 
@@ -74,6 +82,7 @@ func (c *ConnectClient) RunOnAndroid(
 	networkChangeListener listener.NetworkChangeListener,
 	dnsAddresses []netip.AddrPort,
 	dnsReadyListener dns.ReadyListener,
+	stateFilePath string,
 ) error {
 	// in case of non Android os these variables will be nil
 	mobileDependency := MobileDependency{
@@ -82,6 +91,7 @@ func (c *ConnectClient) RunOnAndroid(
 		NetworkChangeListener: networkChangeListener,
 		HostDNSAddresses:      dnsAddresses,
 		DnsReadyListener:      dnsReadyListener,
+		StateFilePath:         stateFilePath,
 	}
 	return c.run(mobileDependency, nil)
 }
@@ -160,6 +170,33 @@ func (c *ConnectClient) run(mobileDependency MobileDependency, runningChan chan
 		return err
 	}
 
+	var path string
+	if runtime.GOOS == "ios" || runtime.GOOS == "android" {
+		// On mobile, use the provided state file path directly
+		if !fileExists(mobileDependency.StateFilePath) {
+			if err := createFile(mobileDependency.StateFilePath); err != nil {
+				log.Errorf("failed to create state file: %v", err)
+				// we are not exiting as we can run without the state manager
+			}
+		}
+		path = mobileDependency.StateFilePath
+	} else {
+		sm := profilemanager.NewServiceManager("")
+		path = sm.GetStatePath()
+	}
+	stateManager := statemanager.New(path)
+	stateManager.RegisterState(&sshconfig.ShutdownState{})
+
+	updateManager, err := updatemanager.NewManager(c.statusRecorder, stateManager)
+	if err == nil {
+		updateManager.CheckUpdateSuccess(c.ctx)
+
+		inst := installer.New()
+		if err := inst.CleanUpInstallerFiles(); err != nil {
+			log.Errorf("failed to clean up temporary installer file: %v", err)
+		}
+	}
+
 	defer c.statusRecorder.ClientStop()
 	operation := func() error {
 		// if context cancelled we not start new backoff cycle
@@ -271,15 +308,25 @@ func (c *ConnectClient) run(mobileDependency MobileDependency, runningChan chan
 		checks := loginResp.GetChecks()
 
 		c.engineMutex.Lock()
-		c.engine = NewEngine(engineCtx, cancel, signalClient, mgmClient, relayManager, engineConfig, mobileDependency, c.statusRecorder, checks)
-		c.engine.SetSyncResponsePersistence(c.persistSyncResponse)
+		engine := NewEngine(engineCtx, cancel, signalClient, mgmClient, relayManager, engineConfig, mobileDependency, c.statusRecorder, checks, stateManager)
+		engine.SetSyncResponsePersistence(c.persistSyncResponse)
+		c.engine = engine
 		c.engineMutex.Unlock()
 
-		if err := c.engine.Start(loginResp.GetNetbirdConfig(), c.config.ManagementURL); err != nil {
+		if err := engine.Start(loginResp.GetNetbirdConfig(), c.config.ManagementURL); err != nil {
 			log.Errorf("error while starting Netbird Connection Engine: %s", err)
 			return wrapErr(err)
 		}
 
+		if loginResp.PeerConfig != nil && loginResp.PeerConfig.AutoUpdate != nil {
+			// AutoUpdate will be true when the user click on "Connect" menu on the UI
+			if c.doInitialAutoUpdate {
+				log.Infof("start engine by ui, run auto-update check")
+				c.engine.InitialUpdateHandling(loginResp.PeerConfig.AutoUpdate)
+				c.doInitialAutoUpdate = false
+			}
+		}
+
 		log.Infof("Netbird engine started, the IP is: %s", peerConfig.GetAddress())
 		state.Set(StatusConnected)
 
@@ -291,12 +338,14 @@ func (c *ConnectClient) run(mobileDependency MobileDependency, runningChan chan
 		<-engineCtx.Done()
 
 		c.engineMutex.Lock()
-		engine := c.engine
 		c.engine = nil
 		c.engineMutex.Unlock()
 
-		if engine != nil && engine.wgInterface != nil {
+		// todo: consider to remove this condition. Is not thread safe.
+		// We should always call Stop(), but we need to verify that it is idempotent
+		if engine.wgInterface != nil {
 			log.Infof("ensuring %s is removed, Netbird engine context cancelled", engine.wgInterface.Name())
+
 			if err := engine.Stop(); err != nil {
 				log.Errorf("Failed to stop engine: %v", err)
 			}

client/internal/debug/debug.go

@@ -27,6 +27,7 @@ import (
 	"github.com/netbirdio/netbird/client/anonymize"
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/internal/profilemanager"
+	"github.com/netbirdio/netbird/client/internal/updatemanager/installer"
 	mgmProto "github.com/netbirdio/netbird/shared/management/proto"
 	"github.com/netbirdio/netbird/util"
 )
@@ -56,6 +57,7 @@ block.prof: Block profiling information.
 heap.prof: Heap profiling information (snapshot of memory allocations).
 allocs.prof: Allocations profiling information.
 threadcreate.prof: Thread creation profiling information.
+stack_trace.txt: Complete stack traces of all goroutines at the time of bundle creation.
 
 
 Anonymization Process
@@ -109,6 +111,9 @@ go tool pprof -http=:8088 heap.prof
 
 This will open a web browser tab with the profiling information.
 
+Stack Trace
+The stack_trace.txt file contains a complete snapshot of all goroutine stack traces at the time the debug bundle was created.
+
 Routes
 The routes.txt file contains detailed routing table information in a tabular format:
 
@@ -327,6 +332,10 @@ func (g *BundleGenerator) createArchive() error {
 		log.Errorf("failed to add profiles to debug bundle: %v", err)
 	}
 
+	if err := g.addStackTrace(); err != nil {
+		log.Errorf("failed to add stack trace to debug bundle: %v", err)
+	}
+
 	if err := g.addSyncResponse(); err != nil {
 		return fmt.Errorf("add sync response: %w", err)
 	}
@@ -354,6 +363,10 @@ func (g *BundleGenerator) createArchive() error {
 		log.Errorf("failed to add systemd logs: %v", err)
 	}
 
+	if err := g.addUpdateLogs(); err != nil {
+		log.Errorf("failed to add updater logs: %v", err)
+	}
+
 	return nil
 }
 
@@ -522,6 +535,18 @@ func (g *BundleGenerator) addProf() (err error) {
 	return nil
 }
 
+func (g *BundleGenerator) addStackTrace() error {
+	buf := make([]byte, 5242880) // 5 MB buffer
+	n := runtime.Stack(buf, true)
+
+	stackTrace := bytes.NewReader(buf[:n])
+	if err := g.addFileToZip(stackTrace, "stack_trace.txt"); err != nil {
+		return fmt.Errorf("add stack trace file to zip: %w", err)
+	}
+
+	return nil
+}
+
 func (g *BundleGenerator) addInterfaces() error {
 	interfaces, err := net.Interfaces()
 	if err != nil {
@@ -630,6 +655,29 @@ func (g *BundleGenerator) addStateFile() error {
 	return nil
 }
 
+func (g *BundleGenerator) addUpdateLogs() error {
+	inst := installer.New()
+	logFiles := inst.LogFiles()
+	if len(logFiles) == 0 {
+		return nil
+	}
+
+	log.Infof("adding updater logs")
+	for _, logFile := range logFiles {
+		data, err := os.ReadFile(logFile)
+		if err != nil {
+			log.Warnf("failed to read update log file %s: %v", logFile, err)
+			continue
+		}
+
+		baseName := filepath.Base(logFile)
+		if err := g.addFileToZip(bytes.NewReader(data), filepath.Join("update-logs", baseName)); err != nil {
+			return fmt.Errorf("add update log file %s to zip: %w", baseName, err)
+		}
+	}
+	return nil
+}
+
 func (g *BundleGenerator) addCorruptedStateFiles() error {
 	sm := profilemanager.NewServiceManager("")
 	pattern := sm.GetStatePath()

client/internal/dns.go

@@ -76,6 +76,9 @@ func collectPTRRecords(config *nbdns.Config, prefix netip.Prefix) []nbdns.Simple
 	var records []nbdns.SimpleRecord
 
 	for _, zone := range config.CustomZones {
+		if zone.SkipPTRProcess {
+			continue
+		}
 		for _, record := range zone.Records {
 			if record.Type != int(dns.TypeA) {
 				continue
@@ -106,8 +109,9 @@ func addReverseZone(config *nbdns.Config, network netip.Prefix) {
 	records := collectPTRRecords(config, network)
 
 	reverseZone := nbdns.CustomZone{
-		Domain:  zoneName,
-		Records: records,
+		Domain:               zoneName,
+		Records:              records,
+		SearchDomainDisabled: true,
 	}
 
 	config.CustomZones = append(config.CustomZones, reverseZone)

client/internal/dns/host.go

@@ -11,11 +11,6 @@ import (
 	nbdns "github.com/netbirdio/netbird/dns"
 )
 
-const (
-	ipv4ReverseZone = ".in-addr.arpa."
-	ipv6ReverseZone = ".ip6.arpa."
-)
-
 type hostManager interface {
 	applyDNSConfig(config HostDNSConfig, stateManager *statemanager.Manager) error
 	restoreHostDNS() error
@@ -110,10 +105,9 @@ func dnsConfigToHostDNSConfig(dnsConfig nbdns.Config, ip netip.Addr, port int) H
 	}
 
 	for _, customZone := range dnsConfig.CustomZones {
-		matchOnly := strings.HasSuffix(customZone.Domain, ipv4ReverseZone) || strings.HasSuffix(customZone.Domain, ipv6ReverseZone)
 		config.Domains = append(config.Domains, DomainConfig{
 			Domain:    strings.ToLower(dns.Fqdn(customZone.Domain)),
-			MatchOnly: matchOnly,
+			MatchOnly: customZone.SearchDomainDisabled,
 		})
 	}
 

client/internal/dns/mgmt/mgmt.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"net"
+	"net/netip"
 	"net/url"
 	"strings"
 	"sync"
@@ -26,6 +27,11 @@ type Resolver struct {
 	mutex         sync.RWMutex
 }
 
+type ipsResponse struct {
+	ips []netip.Addr
+	err error
+}
+
 // NewResolver creates a new management domains cache resolver.
 func NewResolver() *Resolver {
 	return &Resolver{
@@ -99,9 +105,9 @@ func (m *Resolver) AddDomain(ctx context.Context, d domain.Domain) error {
 	ctx, cancel := context.WithTimeout(ctx, dnsTimeout)
 	defer cancel()
 
-	ips, err := net.DefaultResolver.LookupNetIP(ctx, "ip", d.PunycodeString())
+	ips, err := lookupIPWithExtraTimeout(ctx, d)
 	if err != nil {
-		return fmt.Errorf("resolve domain %s: %w", d.SafeString(), err)
+		return err
 	}
 
 	var aRecords, aaaaRecords []dns.RR
@@ -159,6 +165,36 @@ func (m *Resolver) AddDomain(ctx context.Context, d domain.Domain) error {
 	return nil
 }
 
+func lookupIPWithExtraTimeout(ctx context.Context, d domain.Domain) ([]netip.Addr, error) {
+	log.Infof("looking up IP for mgmt domain=%s", d.SafeString())
+	defer log.Infof("done looking up IP for mgmt domain=%s", d.SafeString())
+	resultChan := make(chan *ipsResponse, 1)
+
+	go func() {
+		ips, err := net.DefaultResolver.LookupNetIP(ctx, "ip", d.PunycodeString())
+		resultChan <- &ipsResponse{
+			err: err,
+			ips: ips,
+		}
+	}()
+
+	var resp *ipsResponse
+
+	select {
+	case <-time.After(dnsTimeout + time.Millisecond*500):
+		log.Warnf("timed out waiting for IP for mgmt domain=%s", d.SafeString())
+		return nil, fmt.Errorf("timed out waiting for ips to be available for domain %s", d.SafeString())
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	case resp = <-resultChan:
+	}
+
+	if resp.err != nil {
+		return nil, fmt.Errorf("resolve domain %s: %w", d.SafeString(), resp.err)
+	}
+	return resp.ips, nil
+}
+
 // PopulateFromConfig extracts and caches domains from the client configuration.
 func (m *Resolver) PopulateFromConfig(ctx context.Context, mgmtURL *url.URL) error {
 	if mgmtURL == nil {

client/internal/dns/server.go

@@ -80,6 +80,7 @@ type DefaultServer struct {
 	updateSerial       uint64
 	previousConfigHash uint64
 	currentConfig      HostDNSConfig
+	currentConfigHash  uint64
 	handlerChain       *HandlerChain
 	extraDomains       map[domain.Domain]int
 
@@ -207,6 +208,7 @@ func newDefaultServer(
 		hostsDNSHolder:    newHostsDNSHolder(),
 		hostManager:       &noopHostConfigurator{},
 		mgmtCacheResolver: mgmtCacheResolver,
+		currentConfigHash: ^uint64(0), // Initialize to max uint64 to ensure first config is always applied
 	}
 
 	// register with root zone, handler chain takes care of the routing
@@ -586,8 +588,29 @@ func (s *DefaultServer) applyHostConfig() {
 
 	log.Debugf("extra match domains: %v", maps.Keys(s.extraDomains))
 
+	hash, err := hashstructure.Hash(config, hashstructure.FormatV2, &hashstructure.HashOptions{
+		ZeroNil:         true,
+		IgnoreZeroValue: true,
+		SlicesAsSets:    true,
+		UseStringer:     true,
+	})
+	if err != nil {
+		log.Warnf("unable to hash the host dns configuration, will apply config anyway: %s", err)
+		// Fall through to apply config anyway (fail-safe approach)
+	} else if s.currentConfigHash == hash {
+		log.Debugf("not applying host config as there are no changes")
+		return
+	}
+
+	log.Debugf("applying host config as there are changes")
 	if err := s.hostManager.applyDNSConfig(config, s.stateManager); err != nil {
 		log.Errorf("failed to apply DNS host manager update: %v", err)
+		return
+	}
+
+	// Only update hash if it was computed successfully and config was applied
+	if err == nil {
+		s.currentConfigHash = hash
 	}
 
 	s.registerFallback(config)

client/internal/dns/server_test.go

@@ -1602,7 +1602,10 @@ func TestExtraDomains(t *testing.T) {
 				"other.example.com.",
 				"duplicate.example.com.",
 			},
-			applyHostConfigCall: 4,
+			// Expect 3 calls instead of 4 because when deregistering duplicate.example.com,
+			// the domain remains in the config (ref count goes from 2 to 1), so the host
+			// config hash doesn't change and applyDNSConfig is not called.
+			applyHostConfigCall: 3,
 		},
 		{
 			name: "Config update with new domains after registration",
@@ -1657,7 +1660,10 @@ func TestExtraDomains(t *testing.T) {
 			expectedMatchOnly: []string{
 				"extra.example.com.",
 			},
-			applyHostConfigCall: 3,
+			// Expect 2 calls instead of 3 because when deregistering protected.example.com,
+			// it's removed from extraDomains but still remains in the config (from customZones),
+			// so the host config hash doesn't change and applyDNSConfig is not called.
+			applyHostConfigCall: 2,
 		},
 		{
 			name: "Register domain that is part of nameserver group",

client/internal/dns/upstream.go

@@ -197,7 +197,7 @@ func (u *upstreamResolverBase) handleUpstreamError(err error, upstream netip.Add
 		timeoutMsg += " " + peerInfo
 	}
 	timeoutMsg += fmt.Sprintf(" - error: %v", err)
-	logger.Warnf(timeoutMsg)
+	logger.Warn(timeoutMsg)
 }
 
 func (u *upstreamResolverBase) writeSuccessResponse(w dns.ResponseWriter, rm *dns.Msg, upstream netip.AddrPort, domain string, t time.Duration, logger *log.Entry) bool {

client/internal/dnsfwd/forwarder.go

@@ -234,6 +234,11 @@ func (f *DNSForwarder) handleDNSQuery(w dns.ResponseWriter, query *dns.Msg) *dns
 		return nil
 	}
 
+	// Unmap IPv4-mapped IPv6 addresses that some resolvers may return
+	for i, ip := range ips {
+		ips[i] = ip.Unmap()
+	}
+
 	f.updateInternalState(ips, mostSpecificResId, matchingEntries)
 	f.addIPsToResponse(resp, domain, ips)
 	f.cache.set(domain, question.Qtype, ips)

client/internal/engine.go

@@ -42,14 +42,13 @@ import (
 	"github.com/netbirdio/netbird/client/internal/peer/guard"
 	icemaker "github.com/netbirdio/netbird/client/internal/peer/ice"
 	"github.com/netbirdio/netbird/client/internal/peerstore"
-	"github.com/netbirdio/netbird/client/internal/profilemanager"
 	"github.com/netbirdio/netbird/client/internal/relay"
 	"github.com/netbirdio/netbird/client/internal/rosenpass"
 	"github.com/netbirdio/netbird/client/internal/routemanager"
 	"github.com/netbirdio/netbird/client/internal/routemanager/systemops"
 	"github.com/netbirdio/netbird/client/internal/statemanager"
+	"github.com/netbirdio/netbird/client/internal/updatemanager"
 	cProto "github.com/netbirdio/netbird/client/proto"
-	sshconfig "github.com/netbirdio/netbird/client/ssh/config"
 	"github.com/netbirdio/netbird/shared/management/domain"
 	semaphoregroup "github.com/netbirdio/netbird/util/semaphore-group"
 
@@ -73,6 +72,7 @@ const (
 	PeerConnectionTimeoutMax = 45000 // ms
 	PeerConnectionTimeoutMin = 30000 // ms
 	connInitLimit            = 200
+	disableAutoUpdate        = "disabled"
 )
 
 var ErrResetConnection = fmt.Errorf("reset connection")
@@ -201,6 +201,9 @@ type Engine struct {
 	connSemaphore       *semaphoregroup.SemaphoreGroup
 	flowManager         nftypes.FlowManager
 
+	// auto-update
+	updateManager *updatemanager.Manager
+
 	// WireGuard interface monitor
 	wgIfaceMonitor *WGIfaceMonitor
 
@@ -221,17 +224,7 @@ type localIpUpdater interface {
 }
 
 // NewEngine creates a new Connection Engine with probes attached
-func NewEngine(
-	clientCtx context.Context,
-	clientCancel context.CancelFunc,
-	signalClient signal.Client,
-	mgmClient mgm.Client,
-	relayManager *relayClient.Manager,
-	config *EngineConfig,
-	mobileDep MobileDependency,
-	statusRecorder *peer.Status,
-	checks []*mgmProto.Checks,
-) *Engine {
+func NewEngine(clientCtx context.Context, clientCancel context.CancelFunc, signalClient signal.Client, mgmClient mgm.Client, relayManager *relayClient.Manager, config *EngineConfig, mobileDep MobileDependency, statusRecorder *peer.Status, checks []*mgmProto.Checks, stateManager *statemanager.Manager) *Engine {
 	engine := &Engine{
 		clientCtx:      clientCtx,
 		clientCancel:   clientCancel,
@@ -247,28 +240,12 @@ func NewEngine(
 		TURNs:          []*stun.URI{},
 		networkSerial:  0,
 		statusRecorder: statusRecorder,
+		stateManager:   stateManager,
 		checks:         checks,
 		connSemaphore:  semaphoregroup.NewSemaphoreGroup(connInitLimit),
 		probeStunTurn:  relay.NewStunTurnProbe(relay.DefaultCacheTTL),
 	}
 
-	sm := profilemanager.NewServiceManager("")
-
-	path := sm.GetStatePath()
-	if runtime.GOOS == "ios" {
-		if !fileExists(mobileDep.StateFilePath) {
-			err := createFile(mobileDep.StateFilePath)
-			if err != nil {
-				log.Errorf("failed to create state file: %v", err)
-				// we are not exiting as we can run without the state manager
-			}
-		}
-
-		path = mobileDep.StateFilePath
-	}
-	engine.stateManager = statemanager.New(path)
-	engine.stateManager.RegisterState(&sshconfig.ShutdownState{})
-
 	log.Infof("I am: %s", config.WgPrivateKey.PublicKey().String())
 	return engine
 }
@@ -280,7 +257,6 @@ func (e *Engine) Stop() error {
 		return nil
 	}
 	e.syncMsgMux.Lock()
-	defer e.syncMsgMux.Unlock()
 
 	if e.connMgr != nil {
 		e.connMgr.Close()
@@ -298,9 +274,6 @@ func (e *Engine) Stop() error {
 
 	e.cleanupSSHConfig()
 
-	// stop/restore DNS first so dbus and friends don't complain because of a missing interface
-	e.stopDNSServer()
-
 	if e.ingressGatewayMgr != nil {
 		if err := e.ingressGatewayMgr.Close(); err != nil {
 			log.Warnf("failed to cleanup forward rules: %v", err)
@@ -308,24 +281,33 @@ func (e *Engine) Stop() error {
 		e.ingressGatewayMgr = nil
 	}
 
-	e.stopDNSForwarder()
-
-	if e.routeManager != nil {
-		e.routeManager.Stop(e.stateManager)
-	}
-
 	if e.srWatcher != nil {
 		e.srWatcher.Close()
 	}
 
+	if e.updateManager != nil {
+		e.updateManager.Stop()
+	}
+
+	log.Info("cleaning up status recorder states")
 	e.statusRecorder.ReplaceOfflinePeers([]peer.State{})
 	e.statusRecorder.UpdateDNSStates([]peer.NSGroupState{})
 	e.statusRecorder.UpdateRelayStates([]relay.ProbeResult{})
 
 	if err := e.removeAllPeers(); err != nil {
-		return fmt.Errorf("failed to remove all peers: %s", err)
+		log.Errorf("failed to remove all peers: %s", err)
 	}
 
+	if e.routeManager != nil {
+		e.routeManager.Stop(e.stateManager)
+	}
+
+	e.stopDNSForwarder()
+
+	// stop/restore DNS after peers are closed but before interface goes down
+	// so dbus and friends don't complain because of a missing interface
+	e.stopDNSServer()
+
 	if e.cancel != nil {
 		e.cancel()
 	}
@@ -337,16 +319,18 @@ func (e *Engine) Stop() error {
 		e.flowManager.Close()
 	}
 
-	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
-	defer cancel()
+	stateCtx, stateCancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer stateCancel()
 
-	if err := e.stateManager.Stop(ctx); err != nil {
-		return fmt.Errorf("failed to stop state manager: %w", err)
+	if err := e.stateManager.Stop(stateCtx); err != nil {
+		log.Errorf("failed to stop state manager: %v", err)
 	}
 	if err := e.stateManager.PersistState(context.Background()); err != nil {
 		log.Errorf("failed to persist state: %v", err)
 	}
 
+	e.syncMsgMux.Unlock()
+
 	timeout := e.calculateShutdownTimeout()
 	log.Debugf("waiting for goroutines to finish with timeout: %v", timeout)
 	shutdownCtx, cancel := context.WithTimeout(context.Background(), timeout)
@@ -432,8 +416,7 @@ func (e *Engine) Start(netbirdConfig *mgmProto.NetbirdConfig, mgmtURL *url.URL)
 		if err != nil {
 			return fmt.Errorf("create rosenpass manager: %w", err)
 		}
-		err := e.rpManager.Run()
-		if err != nil {
+		if err := e.rpManager.Run(); err != nil {
 			return fmt.Errorf("run rosenpass manager: %w", err)
 		}
 	}
@@ -485,6 +468,7 @@ func (e *Engine) Start(netbirdConfig *mgmProto.NetbirdConfig, mgmtURL *url.URL)
 	}
 
 	if err := e.createFirewall(); err != nil {
+		e.close()
 		return err
 	}
 
@@ -538,6 +522,13 @@ func (e *Engine) Start(netbirdConfig *mgmProto.NetbirdConfig, mgmtURL *url.URL)
 	return nil
 }
 
+func (e *Engine) InitialUpdateHandling(autoUpdateSettings *mgmProto.AutoUpdateSettings) {
+	e.syncMsgMux.Lock()
+	defer e.syncMsgMux.Unlock()
+
+	e.handleAutoUpdateVersion(autoUpdateSettings, true)
+}
+
 func (e *Engine) createFirewall() error {
 	if e.config.DisableFirewall {
 		log.Infof("firewall is disabled")
@@ -746,10 +737,54 @@ func (e *Engine) PopulateNetbirdConfig(netbirdConfig *mgmProto.NetbirdConfig, mg
 	return nil
 }
 
+func (e *Engine) handleAutoUpdateVersion(autoUpdateSettings *mgmProto.AutoUpdateSettings, initialCheck bool) {
+	if autoUpdateSettings == nil {
+		return
+	}
+
+	disabled := autoUpdateSettings.Version == disableAutoUpdate
+
+	// Stop and cleanup if disabled
+	if e.updateManager != nil && disabled {
+		log.Infof("auto-update is disabled, stopping update manager")
+		e.updateManager.Stop()
+		e.updateManager = nil
+		return
+	}
+
+	// Skip check unless AlwaysUpdate is enabled or this is the initial check at startup
+	if !autoUpdateSettings.AlwaysUpdate && !initialCheck {
+		log.Debugf("skipping auto-update check, AlwaysUpdate is false and this is not the initial check")
+		return
+	}
+
+	// Start manager if needed
+	if e.updateManager == nil {
+		log.Infof("starting auto-update manager")
+		updateManager, err := updatemanager.NewManager(e.statusRecorder, e.stateManager)
+		if err != nil {
+			return
+		}
+		e.updateManager = updateManager
+		e.updateManager.Start(e.ctx)
+	}
+	log.Infof("handling auto-update version: %s", autoUpdateSettings.Version)
+	e.updateManager.SetVersion(autoUpdateSettings.Version)
+}
+
 func (e *Engine) handleSync(update *mgmProto.SyncResponse) error {
 	e.syncMsgMux.Lock()
 	defer e.syncMsgMux.Unlock()
 
+	// Check context INSIDE lock to ensure atomicity with shutdown
+	if e.ctx.Err() != nil {
+		return e.ctx.Err()
+	}
+
+	if update.NetworkMap != nil && update.NetworkMap.PeerConfig != nil {
+		e.handleAutoUpdateVersion(update.NetworkMap.PeerConfig.AutoUpdate, false)
+	}
+
 	if update.GetNetbirdConfig() != nil {
 		wCfg := update.GetNetbirdConfig()
 		err := e.updateTURNs(wCfg.GetTurns())
@@ -1207,7 +1242,9 @@ func toDNSConfig(protoDNSConfig *mgmProto.DNSConfig, network netip.Prefix) nbdns
 
 	for _, zone := range protoDNSConfig.GetCustomZones() {
 		dnsZone := nbdns.CustomZone{
-			Domain: zone.GetDomain(),
+			Domain:               zone.GetDomain(),
+			SearchDomainDisabled: zone.GetSearchDomainDisabled(),
+			SkipPTRProcess:       zone.GetSkipPTRProcess(),
 		}
 		for _, record := range zone.Records {
 			dnsRecord := nbdns.SimpleRecord{
@@ -1367,6 +1404,11 @@ func (e *Engine) receiveSignalEvents() {
 			e.syncMsgMux.Lock()
 			defer e.syncMsgMux.Unlock()
 
+			// Check context INSIDE lock to ensure atomicity with shutdown
+			if e.ctx.Err() != nil {
+				return e.ctx.Err()
+			}
+
 			conn, ok := e.peerStore.PeerConn(msg.Key)
 			if !ok {
 				return fmt.Errorf("wrongly addressed message %s", msg.Key)
@@ -1831,6 +1873,18 @@ func (e *Engine) GetWgAddr() netip.Addr {
 	return e.wgInterface.Address().IP
 }
 
+func (e *Engine) RenewTun(fd int) error {
+	e.syncMsgMux.Lock()
+	wgInterface := e.wgInterface
+	e.syncMsgMux.Unlock()
+
+	if wgInterface == nil {
+		return fmt.Errorf("wireguard interface not initialized")
+	}
+
+	return wgInterface.RenewTun(fd)
+}
+
 // updateDNSForwarder start or stop the DNS forwarder based on the domains and the feature flag
 func (e *Engine) updateDNSForwarder(
 	enabled bool,

client/internal/engine_test.go

@@ -30,11 +30,12 @@ import (
 
 	"github.com/netbirdio/netbird/management/internals/controllers/network_map/controller"
 	"github.com/netbirdio/netbird/management/internals/controllers/network_map/update_channel"
+	"github.com/netbirdio/netbird/management/internals/modules/peers"
+	"github.com/netbirdio/netbird/management/internals/modules/peers/ephemeral/manager"
 	nbgrpc "github.com/netbirdio/netbird/management/internals/shared/grpc"
 
 	"github.com/netbirdio/netbird/management/internals/server/config"
 	"github.com/netbirdio/netbird/management/server/groups"
-	"github.com/netbirdio/netbird/management/server/peers/ephemeral/manager"
 
 	"github.com/netbirdio/netbird/client/iface"
 	"github.com/netbirdio/netbird/client/iface/configurer"
@@ -54,7 +55,6 @@ import (
 	"github.com/netbirdio/netbird/management/server"
 	"github.com/netbirdio/netbird/management/server/activity"
 	"github.com/netbirdio/netbird/management/server/integrations/port_forwarding"
-	"github.com/netbirdio/netbird/management/server/peers"
 	"github.com/netbirdio/netbird/management/server/permissions"
 	"github.com/netbirdio/netbird/management/server/settings"
 	"github.com/netbirdio/netbird/management/server/store"
@@ -110,6 +110,10 @@ type MockWGIface struct {
 	LastActivitiesFunc         func() map[string]monotime.Time
 }
 
+func (m *MockWGIface) RenewTun(_ int) error {
+	return nil
+}
+
 func (m *MockWGIface) RemoveEndpointAddress(_ string) error {
 	return nil
 }
@@ -249,6 +253,7 @@ func TestEngine_SSH(t *testing.T) {
 		MobileDependency{},
 		peer.NewRecorder("https://mgm"),
 		nil,
+		nil,
 	)
 
 	engine.dnsServer = &dns.MockServer{
@@ -410,21 +415,13 @@ func TestEngine_UpdateNetworkMap(t *testing.T) {
 	defer cancel()
 
 	relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String(), iface.DefaultMTU)
-	engine := NewEngine(
-		ctx, cancel,
-		&signal.MockClient{},
-		&mgmt.MockClient{},
-		relayMgr,
-		&EngineConfig{
-			WgIfaceName:  "utun102",
-			WgAddr:       "100.64.0.1/24",
-			WgPrivateKey: key,
-			WgPort:       33100,
-			MTU:          iface.DefaultMTU,
-		},
-		MobileDependency{},
-		peer.NewRecorder("https://mgm"),
-		nil)
+	engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, relayMgr, &EngineConfig{
+		WgIfaceName:  "utun102",
+		WgAddr:       "100.64.0.1/24",
+		WgPrivateKey: key,
+		WgPort:       33100,
+		MTU:          iface.DefaultMTU,
+	}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil, nil)
 
 	wgIface := &MockWGIface{
 		NameFunc: func() string { return "utun102" },
@@ -643,7 +640,7 @@ func TestEngine_Sync(t *testing.T) {
 		WgPrivateKey: key,
 		WgPort:       33100,
 		MTU:          iface.DefaultMTU,
-	}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil)
+	}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil, nil)
 	engine.ctx = ctx
 
 	engine.dnsServer = &dns.MockServer{
@@ -808,7 +805,7 @@ func TestEngine_UpdateNetworkMapWithRoutes(t *testing.T) {
 				WgPrivateKey: key,
 				WgPort:       33100,
 				MTU:          iface.DefaultMTU,
-			}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil)
+			}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil, nil)
 			engine.ctx = ctx
 			newNet, err := stdnet.NewNet(context.Background(), nil)
 			if err != nil {
@@ -1010,7 +1007,7 @@ func TestEngine_UpdateNetworkMapWithDNSUpdate(t *testing.T) {
 				WgPrivateKey: key,
 				WgPort:       33100,
 				MTU:          iface.DefaultMTU,
-			}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil)
+			}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil, nil)
 			engine.ctx = ctx
 
 			newNet, err := stdnet.NewNet(context.Background(), nil)
@@ -1536,7 +1533,7 @@ func createEngine(ctx context.Context, cancel context.CancelFunc, setupKey strin
 	}
 
 	relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String(), iface.DefaultMTU)
-	e, err := NewEngine(ctx, cancel, signalClient, mgmtClient, relayMgr, conf, MobileDependency{}, peer.NewRecorder("https://mgm"), nil), nil
+	e, err := NewEngine(ctx, cancel, signalClient, mgmtClient, relayMgr, conf, MobileDependency{}, peer.NewRecorder("https://mgm"), nil, nil), nil
 	e.ctx = ctx
 	return e, err
 }
@@ -1624,14 +1621,17 @@ func startManagement(t *testing.T, dataDir, testFile string) (*grpc.Server, stri
 
 	updateManager := update_channel.NewPeersUpdateManager(metrics)
 	requestBuffer := server.NewAccountRequestBuffer(context.Background(), store)
-	networkMapController := controller.NewController(context.Background(), store, metrics, updateManager, requestBuffer, server.MockIntegratedValidator{}, settingsMockManager, "netbird.selfhosted", port_forwarding.NewControllerMock(), config)
+	networkMapController := controller.NewController(context.Background(), store, metrics, updateManager, requestBuffer, server.MockIntegratedValidator{}, settingsMockManager, "netbird.selfhosted", port_forwarding.NewControllerMock(), manager.NewEphemeralManager(store, peersManager), config)
 	accountManager, err := server.BuildManager(context.Background(), config, store, networkMapController, nil, "", eventStore, nil, false, ia, metrics, port_forwarding.NewControllerMock(), settingsMockManager, permissionsManager, false)
 	if err != nil {
 		return nil, "", err
 	}
 
-	secretsManager := nbgrpc.NewTimeBasedAuthSecretsManager(updateManager, config.TURNConfig, config.Relay, settingsMockManager, groupsManager)
-	mgmtServer, err := nbgrpc.NewServer(config, accountManager, settingsMockManager, updateManager, secretsManager, nil, &manager.EphemeralManager{}, nil, &server.MockIntegratedValidator{}, networkMapController)
+	secretsManager, err := nbgrpc.NewTimeBasedAuthSecretsManager(updateManager, config.TURNConfig, config.Relay, settingsMockManager, groupsManager)
+	if err != nil {
+		return nil, "", err
+	}
+	mgmtServer, err := nbgrpc.NewServer(config, accountManager, settingsMockManager, secretsManager, nil, nil, &server.MockIntegratedValidator{}, networkMapController)
 	if err != nil {
 		return nil, "", err
 	}

client/internal/iface_common.go

@@ -20,6 +20,7 @@ import (
 type wgIfaceBase interface {
 	Create() error
 	CreateOnAndroid(routeRange []string, ip string, domains []string) error
+	RenewTun(fd int) error
 	IsUserspaceBind() bool
 	Name() string
 	Address() wgaddr.Address

client/internal/peer/endpoint.go

@@ -20,7 +20,7 @@ type EndpointUpdater struct {
 	wgConfig  WgConfig
 	initiator bool
 
-	// mu protects updateWireGuardPeer and cancelFunc
+	// mu protects cancelFunc
 	mu         sync.Mutex
 	cancelFunc func()
 	updateWg   sync.WaitGroup
@@ -86,11 +86,9 @@ func (e *EndpointUpdater) scheduleDelayedUpdate(ctx context.Context, addr *net.U
 	case <-ctx.Done():
 		return
 	case <-t.C:
-		e.mu.Lock()
 		if err := e.updateWireGuardPeer(addr, presharedKey); err != nil {
 			e.log.Errorf("failed to update WireGuard peer, address: %s, error: %v", addr, err)
 		}
-		e.mu.Unlock()
 	}
 }
 

client/internal/profilemanager/config.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"net/url"
 	"os"
+	"os/user"
 	"path/filepath"
 	"reflect"
 	"runtime"
@@ -165,19 +166,26 @@ func getConfigDir() (string, error) {
 	if ConfigDirOverride != "" {
 		return ConfigDirOverride, nil
 	}
-	configDir, err := os.UserConfigDir()
+
+	base, err := baseConfigDir()
 	if err != nil {
 		return "", err
 	}
 
-	configDir = filepath.Join(configDir, "netbird")
-	if _, err := os.Stat(configDir); os.IsNotExist(err) {
-		if err := os.MkdirAll(configDir, 0755); err != nil {
-			return "", err
+	configDir := filepath.Join(base, "netbird")
+	if err := os.MkdirAll(configDir, 0o755); err != nil {
+		return "", err
+	}
+	return configDir, nil
+}
+
+func baseConfigDir() (string, error) {
+	if runtime.GOOS == "darwin" {
+		if u, err := user.Current(); err == nil && u.HomeDir != "" {
+			return filepath.Join(u.HomeDir, "Library", "Application Support"), nil
 		}
 	}
-
-	return configDir, nil
+	return os.UserConfigDir()
 }
 
 func getConfigDirForUser(username string) (string, error) {

client/internal/profilemanager/service.go

@@ -76,6 +76,7 @@ func (a *ActiveProfileState) FilePath() (string, error) {
 }
 
 type ServiceManager struct {
+	profilesDir string // If set, overrides ConfigDirOverride for profile operations
 }
 
 func NewServiceManager(defaultConfigPath string) *ServiceManager {
@@ -85,6 +86,17 @@ func NewServiceManager(defaultConfigPath string) *ServiceManager {
 	return &ServiceManager{}
 }
 
+// NewServiceManagerWithProfilesDir creates a ServiceManager with a specific profiles directory
+// This allows setting the profiles directory without modifying the global ConfigDirOverride
+func NewServiceManagerWithProfilesDir(defaultConfigPath string, profilesDir string) *ServiceManager {
+	if defaultConfigPath != "" {
+		DefaultConfigPath = defaultConfigPath
+	}
+	return &ServiceManager{
+		profilesDir: profilesDir,
+	}
+}
+
 func (s *ServiceManager) CopyDefaultProfileIfNotExists() (bool, error) {
 
 	if err := os.MkdirAll(DefaultConfigPathDir, 0600); err != nil {
@@ -240,7 +252,7 @@ func (s *ServiceManager) DefaultProfilePath() string {
 }
 
 func (s *ServiceManager) AddProfile(profileName, username string) error {
-	configDir, err := getConfigDirForUser(username)
+	configDir, err := s.getConfigDir(username)
 	if err != nil {
 		return fmt.Errorf("failed to get config directory: %w", err)
 	}
@@ -270,7 +282,7 @@ func (s *ServiceManager) AddProfile(profileName, username string) error {
 }
 
 func (s *ServiceManager) RemoveProfile(profileName, username string) error {
-	configDir, err := getConfigDirForUser(username)
+	configDir, err := s.getConfigDir(username)
 	if err != nil {
 		return fmt.Errorf("failed to get config directory: %w", err)
 	}
@@ -302,7 +314,7 @@ func (s *ServiceManager) RemoveProfile(profileName, username string) error {
 }
 
 func (s *ServiceManager) ListProfiles(username string) ([]Profile, error) {
-	configDir, err := getConfigDirForUser(username)
+	configDir, err := s.getConfigDir(username)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get config directory: %w", err)
 	}
@@ -361,7 +373,7 @@ func (s *ServiceManager) GetStatePath() string {
 		return defaultStatePath
 	}
 
-	configDir, err := getConfigDirForUser(activeProf.Username)
+	configDir, err := s.getConfigDir(activeProf.Username)
 	if err != nil {
 		log.Warnf("failed to get config directory for user %s: %v", activeProf.Username, err)
 		return defaultStatePath
@@ -369,3 +381,12 @@ func (s *ServiceManager) GetStatePath() string {
 
 	return filepath.Join(configDir, activeProf.Name+".state.json")
 }
+
+// getConfigDir returns the profiles directory, using profilesDir if set, otherwise getConfigDirForUser
+func (s *ServiceManager) getConfigDir(username string) (string, error) {
+	if s.profilesDir != "" {
+		return s.profilesDir, nil
+	}
+
+	return getConfigDirForUser(username)
+}

client/internal/sleep/detector_darwin.go

@@ -0,0 +1,218 @@
+//go:build darwin && !ios
+
+package sleep
+
+/*
+#cgo LDFLAGS: -framework IOKit -framework CoreFoundation
+#include <IOKit/pwr_mgt/IOPMLib.h>
+#include <IOKit/IOMessage.h>
+#include <CoreFoundation/CoreFoundation.h>
+
+extern void sleepCallbackBridge();
+extern void poweredOnCallbackBridge();
+extern void suspendedCallbackBridge();
+extern void resumedCallbackBridge();
+
+
+// C global variables for IOKit state
+static IONotificationPortRef g_notifyPortRef = NULL;
+static io_object_t g_notifierObject = 0;
+static io_object_t g_generalInterestNotifier = 0;
+static io_connect_t g_rootPort = 0;
+static CFRunLoopRef g_runLoop = NULL;
+
+static void sleepCallback(void* refCon, io_service_t service, natural_t messageType, void* messageArgument) {
+	switch (messageType) {
+		case kIOMessageSystemWillSleep:
+			sleepCallbackBridge();
+			IOAllowPowerChange(g_rootPort, (long)messageArgument);
+			break;
+        case kIOMessageSystemHasPoweredOn:
+          	poweredOnCallbackBridge();
+          	break;
+        case kIOMessageServiceIsSuspended:
+			suspendedCallbackBridge();
+			break;
+		case kIOMessageServiceIsResumed:
+			resumedCallbackBridge();
+			break;
+		default:
+			break;
+	}
+}
+
+static void registerNotifications() {
+	g_rootPort = IORegisterForSystemPower(
+		NULL,
+		&g_notifyPortRef,
+		(IOServiceInterestCallback)sleepCallback,
+		&g_notifierObject
+	);
+
+	if (g_rootPort == 0) {
+		return;
+	}
+
+	CFRunLoopAddSource(CFRunLoopGetCurrent(),
+		IONotificationPortGetRunLoopSource(g_notifyPortRef),
+		kCFRunLoopCommonModes);
+
+	g_runLoop = CFRunLoopGetCurrent();
+	CFRunLoopRun();
+}
+
+static void unregisterNotifications() {
+	CFRunLoopRemoveSource(g_runLoop,
+		IONotificationPortGetRunLoopSource(g_notifyPortRef),
+		kCFRunLoopCommonModes);
+
+	IODeregisterForSystemPower(&g_notifierObject);
+	IOServiceClose(g_rootPort);
+	IONotificationPortDestroy(g_notifyPortRef);
+	CFRunLoopStop(g_runLoop);
+
+	g_notifyPortRef = NULL;
+	g_notifierObject = 0;
+	g_rootPort = 0;
+	g_runLoop = NULL;
+}
+
+*/
+import "C"
+
+import (
+	"context"
+	"fmt"
+	"runtime"
+	"sync"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+)
+
+var (
+	serviceRegistry   = make(map[*Detector]struct{})
+	serviceRegistryMu sync.Mutex
+)
+
+//export sleepCallbackBridge
+func sleepCallbackBridge() {
+	log.Info("sleepCallbackBridge event triggered")
+
+	serviceRegistryMu.Lock()
+	defer serviceRegistryMu.Unlock()
+
+	for svc := range serviceRegistry {
+		svc.triggerCallback(EventTypeSleep)
+	}
+}
+
+//export resumedCallbackBridge
+func resumedCallbackBridge() {
+	log.Info("resumedCallbackBridge event triggered")
+}
+
+//export suspendedCallbackBridge
+func suspendedCallbackBridge() {
+	log.Info("suspendedCallbackBridge event triggered")
+}
+
+//export poweredOnCallbackBridge
+func poweredOnCallbackBridge() {
+	log.Info("poweredOnCallbackBridge event triggered")
+	serviceRegistryMu.Lock()
+	defer serviceRegistryMu.Unlock()
+
+	for svc := range serviceRegistry {
+		svc.triggerCallback(EventTypeWakeUp)
+	}
+}
+
+type Detector struct {
+	callback func(event EventType)
+	ctx      context.Context
+	cancel   context.CancelFunc
+}
+
+func NewDetector() (*Detector, error) {
+	return &Detector{}, nil
+}
+
+func (d *Detector) Register(callback func(event EventType)) error {
+	serviceRegistryMu.Lock()
+	defer serviceRegistryMu.Unlock()
+
+	if _, exists := serviceRegistry[d]; exists {
+		return fmt.Errorf("detector service already registered")
+	}
+
+	d.callback = callback
+
+	d.ctx, d.cancel = context.WithCancel(context.Background())
+
+	if len(serviceRegistry) > 0 {
+		serviceRegistry[d] = struct{}{}
+		return nil
+	}
+
+	serviceRegistry[d] = struct{}{}
+
+	// CFRunLoop must run on a single fixed OS thread
+	go func() {
+		runtime.LockOSThread()
+		defer runtime.UnlockOSThread()
+
+		C.registerNotifications()
+	}()
+
+	log.Info("sleep detection service started on macOS")
+	return nil
+}
+
+// Deregister removes the detector. When the last detector is removed, IOKit registration is torn down
+// and the runloop is stopped and cleaned up.
+func (d *Detector) Deregister() error {
+	serviceRegistryMu.Lock()
+	defer serviceRegistryMu.Unlock()
+	_, exists := serviceRegistry[d]
+	if !exists {
+		return nil
+	}
+
+	// cancel and remove this detector
+	d.cancel()
+	delete(serviceRegistry, d)
+
+	// If other Detectors still exist, leave IOKit running
+	if len(serviceRegistry) > 0 {
+		return nil
+	}
+
+	log.Info("sleep detection service stopping (deregister)")
+
+	// Deregister IOKit notifications, stop runloop, and free resources
+	C.unregisterNotifications()
+
+	return nil
+}
+
+func (d *Detector) triggerCallback(event EventType) {
+	doneChan := make(chan struct{})
+
+	timeout := time.NewTimer(500 * time.Millisecond)
+	defer timeout.Stop()
+
+	cb := d.callback
+	go func(callback func(event EventType)) {
+		log.Info("sleep detection event fired")
+		callback(event)
+		close(doneChan)
+	}(cb)
+
+	select {
+	case <-doneChan:
+	case <-d.ctx.Done():
+	case <-timeout.C:
+		log.Warnf("sleep callback timed out")
+	}
+}

client/internal/sleep/detector_notsupported.go

@@ -0,0 +1,9 @@
+//go:build !darwin || ios
+
+package sleep
+
+import "fmt"
+
+func NewDetector() (detector, error) {
+	return nil, fmt.Errorf("sleep not supported on this platform")
+}

client/internal/sleep/service.go

@@ -0,0 +1,37 @@
+package sleep
+
+var (
+	EventTypeUnknown EventType = 0
+	EventTypeSleep   EventType = 1
+	EventTypeWakeUp  EventType = 2
+)
+
+type EventType int
+
+type detector interface {
+	Register(callback func(eventType EventType)) error
+	Deregister() error
+}
+
+type Service struct {
+	detector detector
+}
+
+func New() (*Service, error) {
+	d, err := NewDetector()
+	if err != nil {
+		return nil, err
+	}
+
+	return &Service{
+		detector: d,
+	}, nil
+}
+
+func (s *Service) Register(callback func(eventType EventType)) error {
+	return s.detector.Register(callback)
+}
+
+func (s *Service) Deregister() error {
+	return s.detector.Deregister()
+}

client/internal/updatemanager/doc.go

@@ -0,0 +1,35 @@
+// Package updatemanager provides automatic update management for the NetBird client.
+// It monitors for new versions, handles update triggers from management server directives,
+// and orchestrates the download and installation of client updates.
+//
+// # Overview
+//
+// The update manager operates as a background service that continuously monitors for
+// available updates and automatically initiates the update process when conditions are met.
+// It integrates with the installer package to perform the actual installation.
+//
+// # Update Flow
+//
+// The complete update process follows these steps:
+//
+//  1. Manager receives update directive via SetVersion() or detects new version
+//  2. Manager validates update should proceed (version comparison, rate limiting)
+//  3. Manager publishes "updating" event to status recorder
+//  4. Manager persists UpdateState to track update attempt
+//  5. Manager downloads installer file (.msi or .exe) to temporary directory
+//  6. Manager triggers installation via installer.RunInstallation()
+//  7. Installer package handles the actual installation process
+//  8. On next startup, CheckUpdateSuccess() verifies update completion
+//  9. Manager publishes success/failure event to status recorder
+//  10. Manager cleans up UpdateState
+//
+// # State Management
+//
+// Update state is persisted across restarts to track update attempts:
+//
+//   - PreUpdateVersion: Version before update attempt
+//   - TargetVersion: Version attempting to update to
+//
+// This enables verification of successful updates and appropriate user notification
+// after the client restarts with the new version.
+package updatemanager

client/internal/updatemanager/downloader/downloader.go

@@ -0,0 +1,138 @@
+package downloader
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/version"
+)
+
+const (
+	userAgent         = "NetBird agent installer/%s"
+	DefaultRetryDelay = 3 * time.Second
+)
+
+func DownloadToFile(ctx context.Context, retryDelay time.Duration, url, dstFile string) error {
+	log.Debugf("starting download from %s", url)
+
+	out, err := os.Create(dstFile)
+	if err != nil {
+		return fmt.Errorf("failed to create destination file %q: %w", dstFile, err)
+	}
+	defer func() {
+		if cerr := out.Close(); cerr != nil {
+			log.Warnf("error closing file %q: %v", dstFile, cerr)
+		}
+	}()
+
+	// First attempt
+	err = downloadToFileOnce(ctx, url, out)
+	if err == nil {
+		log.Infof("successfully downloaded file to %s", dstFile)
+		return nil
+	}
+
+	// If retryDelay is 0, don't retry
+	if retryDelay == 0 {
+		return err
+	}
+
+	log.Warnf("download failed, retrying after %v: %v", retryDelay, err)
+
+	// Sleep before retry
+	if sleepErr := sleepWithContext(ctx, retryDelay); sleepErr != nil {
+		return fmt.Errorf("download cancelled during retry delay: %w", sleepErr)
+	}
+
+	// Truncate file before retry
+	if err := out.Truncate(0); err != nil {
+		return fmt.Errorf("failed to truncate file on retry: %w", err)
+	}
+	if _, err := out.Seek(0, 0); err != nil {
+		return fmt.Errorf("failed to seek to beginning of file: %w", err)
+	}
+
+	// Second attempt
+	if err := downloadToFileOnce(ctx, url, out); err != nil {
+		return fmt.Errorf("download failed after retry: %w", err)
+	}
+
+	log.Infof("successfully downloaded file to %s", dstFile)
+	return nil
+}
+
+func DownloadToMemory(ctx context.Context, url string, limit int64) ([]byte, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create HTTP request: %w", err)
+	}
+
+	// Add User-Agent header
+	req.Header.Set("User-Agent", fmt.Sprintf(userAgent, version.NetbirdVersion()))
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("failed to perform HTTP request: %w", err)
+	}
+	defer func() {
+		if cerr := resp.Body.Close(); cerr != nil {
+			log.Warnf("error closing response body: %v", cerr)
+		}
+	}()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("unexpected HTTP status: %d", resp.StatusCode)
+	}
+
+	data, err := io.ReadAll(io.LimitReader(resp.Body, limit))
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response body: %w", err)
+	}
+
+	return data, nil
+}
+
+func downloadToFileOnce(ctx context.Context, url string, out *os.File) error {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return fmt.Errorf("failed to create HTTP request: %w", err)
+	}
+
+	// Add User-Agent header
+	req.Header.Set("User-Agent", fmt.Sprintf(userAgent, version.NetbirdVersion()))
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to perform HTTP request: %w", err)
+	}
+	defer func() {
+		if cerr := resp.Body.Close(); cerr != nil {
+			log.Warnf("error closing response body: %v", cerr)
+		}
+	}()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("unexpected HTTP status: %d", resp.StatusCode)
+	}
+
+	if _, err := io.Copy(out, resp.Body); err != nil {
+		return fmt.Errorf("failed to write response body to file: %w", err)
+	}
+
+	return nil
+}
+
+func sleepWithContext(ctx context.Context, duration time.Duration) error {
+	select {
+	case <-time.After(duration):
+		return nil
+	case <-ctx.Done():
+		return ctx.Err()
+	}
+}

client/internal/updatemanager/downloader/downloader_test.go

@@ -0,0 +1,199 @@
+package downloader
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"sync/atomic"
+	"testing"
+	"time"
+)
+
+const (
+	retryDelay = 100 * time.Millisecond
+)
+
+func TestDownloadToFile_Success(t *testing.T) {
+	// Create a test server that responds successfully
+	content := "test file content"
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(content))
+	}))
+	defer server.Close()
+
+	// Create a temporary file for download
+	tempDir := t.TempDir()
+	dstFile := filepath.Join(tempDir, "downloaded.txt")
+
+	// Download the file
+	err := DownloadToFile(context.Background(), retryDelay, server.URL, dstFile)
+	if err != nil {
+		t.Fatalf("expected no error, got: %v", err)
+	}
+
+	// Verify the file content
+	data, err := os.ReadFile(dstFile)
+	if err != nil {
+		t.Fatalf("failed to read downloaded file: %v", err)
+	}
+
+	if string(data) != content {
+		t.Errorf("expected content %q, got %q", content, string(data))
+	}
+}
+
+func TestDownloadToFile_SuccessAfterRetry(t *testing.T) {
+	content := "test file content after retry"
+	var attemptCount atomic.Int32
+
+	// Create a test server that fails on first attempt, succeeds on second
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		attempt := attemptCount.Add(1)
+		if attempt == 1 {
+			w.WriteHeader(http.StatusInternalServerError)
+			_, _ = w.Write([]byte("error"))
+			return
+		}
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(content))
+	}))
+	defer server.Close()
+
+	// Create a temporary file for download
+	tempDir := t.TempDir()
+	dstFile := filepath.Join(tempDir, "downloaded.txt")
+
+	// Download the file (should succeed after retry)
+	if err := DownloadToFile(context.Background(), 10*time.Millisecond, server.URL, dstFile); err != nil {
+		t.Fatalf("expected no error after retry, got: %v", err)
+	}
+
+	// Verify the file content
+	data, err := os.ReadFile(dstFile)
+	if err != nil {
+		t.Fatalf("failed to read downloaded file: %v", err)
+	}
+
+	if string(data) != content {
+		t.Errorf("expected content %q, got %q", content, string(data))
+	}
+
+	// Verify it took 2 attempts
+	if attemptCount.Load() != 2 {
+		t.Errorf("expected 2 attempts, got %d", attemptCount.Load())
+	}
+}
+
+func TestDownloadToFile_FailsAfterRetry(t *testing.T) {
+	var attemptCount atomic.Int32
+
+	// Create a test server that always fails
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		attemptCount.Add(1)
+		w.WriteHeader(http.StatusInternalServerError)
+		_, _ = w.Write([]byte("error"))
+	}))
+	defer server.Close()
+
+	// Create a temporary file for download
+	tempDir := t.TempDir()
+	dstFile := filepath.Join(tempDir, "downloaded.txt")
+
+	// Download the file (should fail after retry)
+	if err := DownloadToFile(context.Background(), 10*time.Millisecond, server.URL, dstFile); err == nil {
+		t.Fatal("expected error after retry, got nil")
+	}
+
+	// Verify it tried 2 times
+	if attemptCount.Load() != 2 {
+		t.Errorf("expected 2 attempts, got %d", attemptCount.Load())
+	}
+}
+
+func TestDownloadToFile_ContextCancellationDuringRetry(t *testing.T) {
+	var attemptCount atomic.Int32
+
+	// Create a test server that always fails
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		attemptCount.Add(1)
+		w.WriteHeader(http.StatusInternalServerError)
+	}))
+	defer server.Close()
+
+	// Create a temporary file for download
+	tempDir := t.TempDir()
+	dstFile := filepath.Join(tempDir, "downloaded.txt")
+
+	// Create a context that will be cancelled during retry delay
+	ctx, cancel := context.WithCancel(context.Background())
+
+	// Cancel after a short delay (during the retry sleep)
+	go func() {
+		time.Sleep(100 * time.Millisecond)
+		cancel()
+	}()
+
+	// Download the file (should fail due to context cancellation during retry)
+	err := DownloadToFile(ctx, 1*time.Second, server.URL, dstFile)
+	if err == nil {
+		t.Fatal("expected error due to context cancellation, got nil")
+	}
+
+	// Should have only made 1 attempt (cancelled during retry delay)
+	if attemptCount.Load() != 1 {
+		t.Errorf("expected 1 attempt, got %d", attemptCount.Load())
+	}
+}
+
+func TestDownloadToFile_InvalidURL(t *testing.T) {
+	tempDir := t.TempDir()
+	dstFile := filepath.Join(tempDir, "downloaded.txt")
+
+	err := DownloadToFile(context.Background(), retryDelay, "://invalid-url", dstFile)
+	if err == nil {
+		t.Fatal("expected error for invalid URL, got nil")
+	}
+}
+
+func TestDownloadToFile_InvalidDestination(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte("test"))
+	}))
+	defer server.Close()
+
+	// Use an invalid destination path
+	err := DownloadToFile(context.Background(), retryDelay, server.URL, "/invalid/path/that/does/not/exist/file.txt")
+	if err == nil {
+		t.Fatal("expected error for invalid destination, got nil")
+	}
+}
+
+func TestDownloadToFile_NoRetry(t *testing.T) {
+	var attemptCount atomic.Int32
+
+	// Create a test server that always fails
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		attemptCount.Add(1)
+		w.WriteHeader(http.StatusInternalServerError)
+		_, _ = w.Write([]byte("error"))
+	}))
+	defer server.Close()
+
+	// Create a temporary file for download
+	tempDir := t.TempDir()
+	dstFile := filepath.Join(tempDir, "downloaded.txt")
+
+	// Download the file with retryDelay = 0 (should not retry)
+	if err := DownloadToFile(context.Background(), 0, server.URL, dstFile); err == nil {
+		t.Fatal("expected error, got nil")
+	}
+
+	// Verify it only made 1 attempt (no retry)
+	if attemptCount.Load() != 1 {
+		t.Errorf("expected 1 attempt, got %d", attemptCount.Load())
+	}
+}

client/internal/updatemanager/installer/binary_nowindows.go

@@ -0,0 +1,7 @@
+//go:build !windows
+
+package installer
+
+func UpdaterBinaryNameWithoutExtension() string {
+	return updaterBinary
+}

client/internal/updatemanager/installer/binary_windows.go

@@ -0,0 +1,11 @@
+package installer
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+func UpdaterBinaryNameWithoutExtension() string {
+	ext := filepath.Ext(updaterBinary)
+	return strings.TrimSuffix(updaterBinary, ext)
+}

client/internal/updatemanager/installer/doc.go

@@ -0,0 +1,111 @@
+// Package installer provides functionality for managing NetBird application
+// updates and installations across Windows, macOS. It handles
+// the complete update lifecycle including artifact download, cryptographic verification,
+// installation execution, process management, and result reporting.
+//
+// # Architecture
+//
+// The installer package uses a two-process architecture to enable self-updates:
+//
+//  1. Service Process: The main NetBird daemon process that initiates updates
+//  2. Updater Process: A detached child process that performs the actual installation
+//
+// This separation is critical because:
+//   - The service binary cannot update itself while running
+//   - The installer (EXE/MSI/PKG) will terminate the service during installation
+//   - The updater process survives service termination and restarts it after installation
+//   - Results can be communicated back to the service after it restarts
+//
+// # Update Flow
+//
+// Service Process (RunInstallation):
+//
+//  1. Validates target version format (semver)
+//  2. Determines installer type (EXE, MSI, PKG, or Homebrew)
+//  3. Downloads installer file from GitHub releases (if applicable)
+//  4. Verifies installer signature using reposign package (cryptographic verification in service process before
+//     launching updater)
+//  5. Copies service binary to tempDir as "updater" (or "updater.exe" on Windows)
+//  6. Launches updater process with detached mode:
+//     - --temp-dir: Temporary directory path
+//     - --service-dir: Service installation directory
+//     - --installer-file: Path to downloaded installer (if applicable)
+//     - --dry-run: Optional flag to test without actually installing
+//  7. Service process continues running (will be terminated by installer later)
+//  8. Service can watch for result.json using ResultHandler.Watch() to detect completion
+//
+// Updater Process (Setup):
+//
+//  1. Receives parameters from service via command-line arguments
+//  2. Runs installer with appropriate silent/quiet flags:
+//     - Windows EXE: installer.exe /S
+//     - Windows MSI: msiexec.exe /i installer.msi /quiet /qn /l*v msi.log
+//     - macOS PKG: installer -pkg installer.pkg -target /
+//     - macOS Homebrew: brew upgrade netbirdio/tap/netbird
+//  3. Installer terminates daemon and UI processes
+//  4. Installer replaces binaries with new version
+//  5. Updater waits for installer to complete
+//  6. Updater restarts daemon:
+//     - Windows: netbird.exe service start
+//     - macOS/Linux: netbird service start
+//  7. Updater restarts UI:
+//     - Windows: Launches netbird-ui.exe as active console user using CreateProcessAsUser
+//     - macOS: Uses launchctl asuser to launch NetBird.app for console user
+//     - Linux: Not implemented (UI typically auto-starts)
+//  8. Updater writes result.json with success/error status
+//  9. Updater process exits
+//
+// # Result Communication
+//
+// The ResultHandler (result.go) manages communication between updater and service:
+//
+// Result Structure:
+//
+//	type Result struct {
+//	    Success    bool      // true if installation succeeded
+//	    Error      string    // error message if Success is false
+//	    ExecutedAt time.Time // when installation completed
+//	}
+//
+// Result files are automatically cleaned up after being read.
+//
+// # File Locations
+//
+// Temporary Directory (platform-specific):
+//
+// Windows:
+//   - Path: %ProgramData%\Netbird\tmp-install
+//   - Example: C:\ProgramData\Netbird\tmp-install
+//
+// macOS:
+//   - Path: /var/lib/netbird/tmp-install
+//   - Requires root permissions
+//
+// Files created during installation:
+//
+//		tmp-install/
+//	   installer.log
+//		  updater[.exe]                    # Copy of service binary
+//		  netbird_installer_*.[exe|msi|pkg] # Downloaded installer
+//		  result.json                       # Installation result
+//		  msi.log                           # MSI verbose log (Windows MSI only)
+//
+// # API Reference
+//
+// # Cleanup
+//
+// CleanUpInstallerFiles() removes temporary files after successful installation:
+//   - Downloaded installer files (*.exe, *.msi, *.pkg)
+//   - Updater binary copy
+//   - Does NOT remove result.json (cleaned by ResultHandler after read)
+//   - Does NOT remove msi.log (kept for debugging)
+//
+// # Dry-Run Mode
+//
+// Dry-run mode allows testing the update process without actually installing:
+//
+// Enable via environment variable:
+//
+//	export NB_AUTO_UPDATE_DRY_RUN=true
+//	netbird service install-update 0.29.0
+package installer

client/internal/updatemanager/installer/installer.go

@@ -0,0 +1,50 @@
+//go:build !windows && !darwin
+
+package installer
+
+import (
+	"context"
+	"fmt"
+)
+
+const (
+	updaterBinary = "updater"
+)
+
+type Installer struct {
+	tempDir string
+}
+
+// New used by the service
+func New() *Installer {
+	return &Installer{}
+}
+
+// NewWithDir used by the updater process, get the tempDir from the service via cmd line
+func NewWithDir(tempDir string) *Installer {
+	return &Installer{
+		tempDir: tempDir,
+	}
+}
+
+func (u *Installer) TempDir() string {
+	return ""
+}
+
+func (c *Installer) LogFiles() []string {
+	return []string{}
+}
+
+func (u *Installer) CleanUpInstallerFiles() error {
+	return nil
+}
+
+func (u *Installer) RunInstallation(ctx context.Context, targetVersion string) error {
+	return fmt.Errorf("unsupported platform")
+}
+
+// Setup runs the installer with appropriate arguments and manages the daemon/UI state
+// This will be run by the updater process
+func (u *Installer) Setup(ctx context.Context, dryRun bool, targetVersion string, daemonFolder string) (resultErr error) {
+	return fmt.Errorf("unsupported platform")
+}

client/internal/updatemanager/installer/installer_common.go

@@ -0,0 +1,293 @@
+//go:build windows || darwin
+
+package installer
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	"path"
+	"path/filepath"
+	"strings"
+
+	"github.com/hashicorp/go-multierror"
+	goversion "github.com/hashicorp/go-version"
+	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/internal/updatemanager/downloader"
+	"github.com/netbirdio/netbird/client/internal/updatemanager/reposign"
+)
+
+type Installer struct {
+	tempDir string
+}
+
+// New used by the service
+func New() *Installer {
+	return &Installer{
+		tempDir: defaultTempDir,
+	}
+}
+
+// NewWithDir used by the updater process, get the tempDir from the service via cmd line
+func NewWithDir(tempDir string) *Installer {
+	return &Installer{
+		tempDir: tempDir,
+	}
+}
+
+// RunInstallation starts the updater process to run the installation
+// This will run by the original service process
+func (u *Installer) RunInstallation(ctx context.Context, targetVersion string) (err error) {
+	resultHandler := NewResultHandler(u.tempDir)
+
+	defer func() {
+		if err != nil {
+			if writeErr := resultHandler.WriteErr(err); writeErr != nil {
+				log.Errorf("failed to write error result: %v", writeErr)
+			}
+		}
+	}()
+
+	if err := validateTargetVersion(targetVersion); err != nil {
+		return err
+	}
+
+	if err := u.mkTempDir(); err != nil {
+		return err
+	}
+
+	var installerFile string
+	// Download files only when not using any third-party store
+	if installerType := TypeOfInstaller(ctx); installerType.Downloadable() {
+		log.Infof("download installer")
+		var err error
+		installerFile, err = u.downloadInstaller(ctx, installerType, targetVersion)
+		if err != nil {
+			log.Errorf("failed to download installer: %v", err)
+			return err
+		}
+
+		artifactVerify, err := reposign.NewArtifactVerify(DefaultSigningKeysBaseURL)
+		if err != nil {
+			log.Errorf("failed to create artifact verify: %v", err)
+			return err
+		}
+
+		if err := artifactVerify.Verify(ctx, targetVersion, installerFile); err != nil {
+			log.Errorf("artifact verification error: %v", err)
+			return err
+		}
+	}
+
+	log.Infof("running installer")
+	updaterPath, err := u.copyUpdater()
+	if err != nil {
+		return err
+	}
+
+	// the directory where the service has been installed
+	workspace, err := getServiceDir()
+	if err != nil {
+		return err
+	}
+
+	args := []string{
+		"--temp-dir", u.tempDir,
+		"--service-dir", workspace,
+	}
+
+	if isDryRunEnabled() {
+		args = append(args, "--dry-run=true")
+	}
+
+	if installerFile != "" {
+		args = append(args, "--installer-file", installerFile)
+	}
+
+	updateCmd := exec.Command(updaterPath, args...)
+	log.Infof("starting updater process: %s", updateCmd.String())
+
+	// Configure the updater to run in a separate session/process group
+	// so it survives the parent daemon being stopped
+	setUpdaterProcAttr(updateCmd)
+
+	// Start the updater process asynchronously
+	if err := updateCmd.Start(); err != nil {
+		return err
+	}
+
+	pid := updateCmd.Process.Pid
+	log.Infof("updater started with PID %d", pid)
+
+	// Release the process so the OS can fully detach it
+	if err := updateCmd.Process.Release(); err != nil {
+		log.Warnf("failed to release updater process: %v", err)
+	}
+
+	return nil
+}
+
+// CleanUpInstallerFiles
+// - the installer file (pkg, exe, msi)
+// - the selfcopy updater.exe
+func (u *Installer) CleanUpInstallerFiles() error {
+	// Check if tempDir exists
+	info, err := os.Stat(u.tempDir)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return nil
+		}
+		return err
+	}
+
+	if !info.IsDir() {
+		return nil
+	}
+
+	var merr *multierror.Error
+
+	if err := os.Remove(filepath.Join(u.tempDir, updaterBinary)); err != nil && !os.IsNotExist(err) {
+		merr = multierror.Append(merr, fmt.Errorf("failed to remove updater binary: %w", err))
+	}
+
+	entries, err := os.ReadDir(u.tempDir)
+	if err != nil {
+		return err
+	}
+
+	for _, entry := range entries {
+		if entry.IsDir() {
+			continue
+		}
+
+		name := entry.Name()
+		for _, ext := range binaryExtensions {
+			if strings.HasSuffix(strings.ToLower(name), strings.ToLower(ext)) {
+				if err := os.Remove(filepath.Join(u.tempDir, name)); err != nil {
+					merr = multierror.Append(merr, fmt.Errorf("failed to remove %s: %w", name, err))
+				}
+				break
+			}
+		}
+	}
+
+	return merr.ErrorOrNil()
+}
+
+func (u *Installer) downloadInstaller(ctx context.Context, installerType Type, targetVersion string) (string, error) {
+	fileURL := urlWithVersionArch(installerType, targetVersion)
+
+	// Clean up temp directory on error
+	var success bool
+	defer func() {
+		if !success {
+			if err := os.RemoveAll(u.tempDir); err != nil {
+				log.Errorf("error cleaning up temporary directory: %v", err)
+			}
+		}
+	}()
+
+	fileName := path.Base(fileURL)
+	if fileName == "." || fileName == "/" || fileName == "" {
+		return "", fmt.Errorf("invalid file URL: %s", fileURL)
+	}
+
+	outputFilePath := filepath.Join(u.tempDir, fileName)
+	if err := downloader.DownloadToFile(ctx, downloader.DefaultRetryDelay, fileURL, outputFilePath); err != nil {
+		return "", err
+	}
+
+	success = true
+	return outputFilePath, nil
+}
+
+func (u *Installer) TempDir() string {
+	return u.tempDir
+}
+
+func (u *Installer) mkTempDir() error {
+	if err := os.MkdirAll(u.tempDir, 0o755); err != nil {
+		log.Debugf("failed to create tempdir: %s", u.tempDir)
+		return err
+	}
+	return nil
+}
+
+func (u *Installer) copyUpdater() (string, error) {
+	src, err := getServiceBinary()
+	if err != nil {
+		return "", fmt.Errorf("failed to get updater binary: %w", err)
+	}
+
+	dst := filepath.Join(u.tempDir, updaterBinary)
+	if err := copyFile(src, dst); err != nil {
+		return "", fmt.Errorf("failed to copy updater binary: %w", err)
+	}
+
+	if err := os.Chmod(dst, 0o755); err != nil {
+		return "", fmt.Errorf("failed to set permissions: %w", err)
+	}
+
+	return dst, nil
+}
+
+func validateTargetVersion(targetVersion string) error {
+	if targetVersion == "" {
+		return fmt.Errorf("target version cannot be empty")
+	}
+
+	_, err := goversion.NewVersion(targetVersion)
+	if err != nil {
+		return fmt.Errorf("invalid target version %q: %w", targetVersion, err)
+	}
+
+	return nil
+}
+
+func copyFile(src, dst string) error {
+	log.Infof("copying %s to %s", src, dst)
+	in, err := os.Open(src)
+	if err != nil {
+		return fmt.Errorf("open source: %w", err)
+	}
+	defer func() {
+		if err := in.Close(); err != nil {
+			log.Warnf("failed to close source file: %v", err)
+		}
+	}()
+
+	out, err := os.Create(dst)
+	if err != nil {
+		return fmt.Errorf("create destination: %w", err)
+	}
+	defer func() {
+		if err := out.Close(); err != nil {
+			log.Warnf("failed to close destination file: %v", err)
+		}
+	}()
+
+	if _, err := io.Copy(out, in); err != nil {
+		return fmt.Errorf("copy: %w", err)
+	}
+
+	return nil
+}
+
+func getServiceDir() (string, error) {
+	exePath, err := os.Executable()
+	if err != nil {
+		return "", err
+	}
+	return filepath.Dir(exePath), nil
+}
+
+func getServiceBinary() (string, error) {
+	return os.Executable()
+}
+
+func isDryRunEnabled() bool {
+	return strings.EqualFold(strings.TrimSpace(os.Getenv("NB_AUTO_UPDATE_DRY_RUN")), "true")
+}

client/internal/updatemanager/installer/installer_log_darwin.go

@@ -0,0 +1,11 @@
+package installer
+
+import (
+	"path/filepath"
+)
+
+func (u *Installer) LogFiles() []string {
+	return []string{
+		filepath.Join(u.tempDir, LogFile),
+	}
+}

client/internal/updatemanager/installer/installer_log_windows.go

@@ -0,0 +1,12 @@
+package installer
+
+import (
+	"path/filepath"
+)
+
+func (u *Installer) LogFiles() []string {
+	return []string{
+		filepath.Join(u.tempDir, msiLogFile),
+		filepath.Join(u.tempDir, LogFile),
+	}
+}

client/internal/updatemanager/installer/installer_run_darwin.go

@@ -0,0 +1,238 @@
+package installer
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+	"os/user"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"syscall"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	daemonName    = "netbird"
+	updaterBinary = "updater"
+	uiBinary      = "/Applications/NetBird.app"
+
+	defaultTempDir = "/var/lib/netbird/tmp-install"
+
+	pkgDownloadURL = "https://github.com/mlsmaycon/netbird/releases/download/v%version/netbird_%version_darwin_%arch.pkg"
+)
+
+var (
+	binaryExtensions = []string{"pkg"}
+)
+
+// Setup runs the installer with appropriate arguments and manages the daemon/UI state
+// This will be run by the updater process
+func (u *Installer) Setup(ctx context.Context, dryRun bool, installerFile string, daemonFolder string) (resultErr error) {
+	resultHandler := NewResultHandler(u.tempDir)
+
+	// Always ensure daemon and UI are restarted after setup
+	defer func() {
+		log.Infof("write out result")
+		var err error
+		if resultErr == nil {
+			err = resultHandler.WriteSuccess()
+		} else {
+			err = resultHandler.WriteErr(resultErr)
+		}
+		if err != nil {
+			log.Errorf("failed to write update result: %v", err)
+		}
+
+		// skip service restart if dry-run mode is enabled
+		if dryRun {
+			return
+		}
+
+		log.Infof("starting daemon back")
+		if err := u.startDaemon(daemonFolder); err != nil {
+			log.Errorf("failed to start daemon: %v", err)
+		}
+
+		log.Infof("starting UI back")
+		if err := u.startUIAsUser(); err != nil {
+			log.Errorf("failed to start UI: %v", err)
+		}
+
+	}()
+
+	if dryRun {
+		time.Sleep(7 * time.Second)
+		log.Infof("dry-run mode enabled, skipping actual installation")
+		resultErr = fmt.Errorf("dry-run mode enabled")
+		return
+	}
+
+	switch TypeOfInstaller(ctx) {
+	case TypePKG:
+		resultErr = u.installPkgFile(ctx, installerFile)
+	case TypeHomebrew:
+		resultErr = u.updateHomeBrew(ctx)
+	}
+
+	return resultErr
+}
+
+func (u *Installer) startDaemon(daemonFolder string) error {
+	log.Infof("starting netbird service")
+	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel()
+
+	cmd := exec.CommandContext(ctx, filepath.Join(daemonFolder, daemonName), "service", "start")
+	if output, err := cmd.CombinedOutput(); err != nil {
+		log.Warnf("failed to start netbird service: %v, output: %s", err, string(output))
+		return err
+	}
+	log.Infof("netbird service started successfully")
+	return nil
+}
+
+func (u *Installer) startUIAsUser() error {
+	log.Infof("starting netbird-ui: %s", uiBinary)
+
+	// Get the current console user
+	cmd := exec.Command("stat", "-f", "%Su", "/dev/console")
+	output, err := cmd.Output()
+	if err != nil {
+		return fmt.Errorf("failed to get console user: %w", err)
+	}
+
+	username := strings.TrimSpace(string(output))
+	if username == "" || username == "root" {
+		return fmt.Errorf("no active user session found")
+	}
+
+	log.Infof("starting UI for user: %s", username)
+
+	// Get user's UID
+	userInfo, err := user.Lookup(username)
+	if err != nil {
+		return fmt.Errorf("failed to lookup user %s: %w", username, err)
+	}
+
+	// Start the UI process as the console user using launchctl
+	// This ensures the app runs in the user's context with proper GUI access
+	launchCmd := exec.Command("launchctl", "asuser", userInfo.Uid, "open", "-a", uiBinary)
+	log.Infof("launchCmd: %s", launchCmd.String())
+	// Set the user's home directory for proper macOS app behavior
+	launchCmd.Env = append(os.Environ(), "HOME="+userInfo.HomeDir)
+	log.Infof("set HOME environment variable: %s", userInfo.HomeDir)
+
+	if err := launchCmd.Start(); err != nil {
+		return fmt.Errorf("failed to start UI process: %w", err)
+	}
+
+	// Release the process so it can run independently
+	if err := launchCmd.Process.Release(); err != nil {
+		log.Warnf("failed to release UI process: %v", err)
+	}
+
+	log.Infof("netbird-ui started successfully for user %s", username)
+	return nil
+}
+
+func (u *Installer) installPkgFile(ctx context.Context, path string) error {
+	log.Infof("installing pkg file: %s", path)
+
+	// Kill any existing UI processes before installation
+	// This ensures the postinstall script's "open $APP" will start the new version
+	u.killUI()
+
+	volume := "/"
+
+	cmd := exec.CommandContext(ctx, "installer", "-pkg", path, "-target", volume)
+	if err := cmd.Start(); err != nil {
+		return fmt.Errorf("error running pkg file: %w", err)
+	}
+	log.Infof("installer started with PID %d", cmd.Process.Pid)
+	if err := cmd.Wait(); err != nil {
+		return fmt.Errorf("error running pkg file: %w", err)
+	}
+	log.Infof("pkg file installed successfully")
+	return nil
+}
+
+func (u *Installer) updateHomeBrew(ctx context.Context) error {
+	log.Infof("updating homebrew")
+
+	// Kill any existing UI processes before upgrade
+	// This ensures the new version will be started after upgrade
+	u.killUI()
+
+	// Homebrew must be run as a non-root user
+	// To find out which user installed NetBird using HomeBrew we can check the owner of our brew tap directory
+	// Check both Apple Silicon and Intel Mac paths
+	brewTapPath := "/opt/homebrew/Library/Taps/netbirdio/homebrew-tap/"
+	brewBinPath := "/opt/homebrew/bin/brew"
+	if _, err := os.Stat(brewTapPath); os.IsNotExist(err) {
+		// Try Intel Mac path
+		brewTapPath = "/usr/local/Homebrew/Library/Taps/netbirdio/homebrew-tap/"
+		brewBinPath = "/usr/local/bin/brew"
+	}
+
+	fileInfo, err := os.Stat(brewTapPath)
+	if err != nil {
+		return fmt.Errorf("error getting homebrew installation path info: %w", err)
+	}
+
+	fileSysInfo, ok := fileInfo.Sys().(*syscall.Stat_t)
+	if !ok {
+		return fmt.Errorf("error checking file owner, sysInfo type is %T not *syscall.Stat_t", fileInfo.Sys())
+	}
+
+	// Get username from UID
+	brewUser, err := user.LookupId(fmt.Sprintf("%d", fileSysInfo.Uid))
+	if err != nil {
+		return fmt.Errorf("error looking up brew installer user: %w", err)
+	}
+	userName := brewUser.Username
+	// Get user HOME, required for brew to run correctly
+	// https://github.com/Homebrew/brew/issues/15833
+	homeDir := brewUser.HomeDir
+
+	// Check if netbird-ui is installed (must run as the brew user, not root)
+	checkUICmd := exec.CommandContext(ctx, "sudo", "-u", userName, brewBinPath, "list", "--formula", "netbirdio/tap/netbird-ui")
+	checkUICmd.Env = append(os.Environ(), "HOME="+homeDir)
+	uiInstalled := checkUICmd.Run() == nil
+
+	// Homebrew does not support installing specific versions
+	// Thus it will always update to latest and ignore targetVersion
+	upgradeArgs := []string{"-u", userName, brewBinPath, "upgrade", "netbirdio/tap/netbird"}
+	if uiInstalled {
+		upgradeArgs = append(upgradeArgs, "netbirdio/tap/netbird-ui")
+	}
+
+	cmd := exec.CommandContext(ctx, "sudo", upgradeArgs...)
+	cmd.Env = append(os.Environ(), "HOME="+homeDir)
+
+	if output, err := cmd.CombinedOutput(); err != nil {
+		return fmt.Errorf("error running brew upgrade: %w, output: %s", err, string(output))
+	}
+
+	log.Infof("homebrew updated successfully")
+	return nil
+}
+
+func (u *Installer) killUI() {
+	log.Infof("killing existing netbird-ui processes")
+	cmd := exec.Command("pkill", "-x", "netbird-ui")
+	if output, err := cmd.CombinedOutput(); err != nil {
+		// pkill returns exit code 1 if no processes matched, which is fine
+		log.Debugf("pkill netbird-ui result: %v, output: %s", err, string(output))
+	} else {
+		log.Infof("netbird-ui processes killed")
+	}
+}
+
+func urlWithVersionArch(_ Type, version string) string {
+	url := strings.ReplaceAll(pkgDownloadURL, "%version", version)
+	return strings.ReplaceAll(url, "%arch", runtime.GOARCH)
+}

client/internal/updatemanager/installer/installer_run_windows.go

@@ -0,0 +1,213 @@
+package installer
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"time"
+	"unsafe"
+
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/sys/windows"
+)
+
+const (
+	daemonName    = "netbird.exe"
+	uiName        = "netbird-ui.exe"
+	updaterBinary = "updater.exe"
+
+	msiLogFile = "msi.log"
+
+	msiDownloadURL = "https://github.com/mlsmaycon/netbird/releases/download/v%version/netbird_installer_%version_windows_%arch.msi"
+	exeDownloadURL = "https://github.com/mlsmaycon/netbird/releases/download/v%version/netbird_installer_%version_windows_%arch.exe"
+)
+
+var (
+	defaultTempDir = filepath.Join(os.Getenv("ProgramData"), "Netbird", "tmp-install")
+
+	// for the cleanup
+	binaryExtensions = []string{"msi", "exe"}
+)
+
+// Setup runs the installer with appropriate arguments and manages the daemon/UI state
+// This will be run by the updater process
+func (u *Installer) Setup(ctx context.Context, dryRun bool, installerFile string, daemonFolder string) (resultErr error) {
+	resultHandler := NewResultHandler(u.tempDir)
+
+	// Always ensure daemon and UI are restarted after setup
+	defer func() {
+		log.Infof("starting daemon back")
+		if err := u.startDaemon(daemonFolder); err != nil {
+			log.Errorf("failed to start daemon: %v", err)
+		}
+
+		log.Infof("starting UI back")
+		if err := u.startUIAsUser(daemonFolder); err != nil {
+			log.Errorf("failed to start UI: %v", err)
+		}
+
+		log.Infof("write out result")
+		var err error
+		if resultErr == nil {
+			err = resultHandler.WriteSuccess()
+		} else {
+			err = resultHandler.WriteErr(resultErr)
+		}
+		if err != nil {
+			log.Errorf("failed to write update result: %v", err)
+		}
+	}()
+
+	if dryRun {
+		log.Infof("dry-run mode enabled, skipping actual installation")
+		resultErr = fmt.Errorf("dry-run mode enabled")
+		return
+	}
+
+	installerType, err := typeByFileExtension(installerFile)
+	if err != nil {
+		log.Debugf("%v", err)
+		resultErr = err
+		return
+	}
+
+	var cmd *exec.Cmd
+	switch installerType {
+	case TypeExe:
+		log.Infof("run exe installer: %s", installerFile)
+		cmd = exec.CommandContext(ctx, installerFile, "/S")
+	default:
+		installerDir := filepath.Dir(installerFile)
+		logPath := filepath.Join(installerDir, msiLogFile)
+		log.Infof("run msi installer: %s", installerFile)
+		cmd = exec.CommandContext(ctx, "msiexec.exe", "/i", filepath.Base(installerFile), "/quiet", "/qn", "/l*v", logPath)
+	}
+
+	cmd.Dir = filepath.Dir(installerFile)
+
+	if resultErr = cmd.Start(); resultErr != nil {
+		log.Errorf("error starting installer: %v", resultErr)
+		return
+	}
+
+	log.Infof("installer started with PID %d", cmd.Process.Pid)
+	if resultErr = cmd.Wait(); resultErr != nil {
+		log.Errorf("installer process finished with error: %v", resultErr)
+		return
+	}
+
+	return nil
+}
+
+func (u *Installer) startDaemon(daemonFolder string) error {
+	log.Infof("starting netbird service")
+	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel()
+
+	cmd := exec.CommandContext(ctx, filepath.Join(daemonFolder, daemonName), "service", "start")
+	if output, err := cmd.CombinedOutput(); err != nil {
+		log.Debugf("failed to start netbird service: %v, output: %s", err, string(output))
+		return err
+	}
+	log.Infof("netbird service started successfully")
+	return nil
+}
+
+func (u *Installer) startUIAsUser(daemonFolder string) error {
+	uiPath := filepath.Join(daemonFolder, uiName)
+	log.Infof("starting netbird-ui: %s", uiPath)
+
+	// Get the active console session ID
+	sessionID := windows.WTSGetActiveConsoleSessionId()
+	if sessionID == 0xFFFFFFFF {
+		return fmt.Errorf("no active user session found")
+	}
+
+	// Get the user token for that session
+	var userToken windows.Token
+	err := windows.WTSQueryUserToken(sessionID, &userToken)
+	if err != nil {
+		return fmt.Errorf("failed to query user token: %w", err)
+	}
+	defer func() {
+		if err := userToken.Close(); err != nil {
+			log.Warnf("failed to close user token: %v", err)
+		}
+	}()
+
+	// Duplicate the token to a primary token
+	var primaryToken windows.Token
+	err = windows.DuplicateTokenEx(
+		userToken,
+		windows.MAXIMUM_ALLOWED,
+		nil,
+		windows.SecurityImpersonation,
+		windows.TokenPrimary,
+		&primaryToken,
+	)
+	if err != nil {
+		return fmt.Errorf("failed to duplicate token: %w", err)
+	}
+	defer func() {
+		if err := primaryToken.Close(); err != nil {
+			log.Warnf("failed to close token: %v", err)
+		}
+	}()
+
+	// Prepare startup info
+	var si windows.StartupInfo
+	si.Cb = uint32(unsafe.Sizeof(si))
+	si.Desktop = windows.StringToUTF16Ptr("winsta0\\default")
+
+	var pi windows.ProcessInformation
+
+	cmdLine, err := windows.UTF16PtrFromString(fmt.Sprintf("\"%s\"", uiPath))
+	if err != nil {
+		return fmt.Errorf("failed to convert path to UTF16: %w", err)
+	}
+
+	creationFlags := uint32(0x00000200 | 0x00000008 | 0x00000400) // CREATE_NEW_PROCESS_GROUP | DETACHED_PROCESS | CREATE_UNICODE_ENVIRONMENT
+
+	err = windows.CreateProcessAsUser(
+		primaryToken,
+		nil,
+		cmdLine,
+		nil,
+		nil,
+		false,
+		creationFlags,
+		nil,
+		nil,
+		&si,
+		&pi,
+	)
+	if err != nil {
+		return fmt.Errorf("CreateProcessAsUser failed: %w", err)
+	}
+
+	// Close handles
+	if err := windows.CloseHandle(pi.Process); err != nil {
+		log.Warnf("failed to close process handle: %v", err)
+	}
+	if err := windows.CloseHandle(pi.Thread); err != nil {
+		log.Warnf("failed to close thread handle: %v", err)
+	}
+
+	log.Infof("netbird-ui started successfully in session %d", sessionID)
+	return nil
+}
+
+func urlWithVersionArch(it Type, version string) string {
+	var url string
+	if it == TypeExe {
+		url = exeDownloadURL
+	} else {
+		url = msiDownloadURL
+	}
+	url = strings.ReplaceAll(url, "%version", version)
+	return strings.ReplaceAll(url, "%arch", runtime.GOARCH)
+}

client/internal/updatemanager/installer/log.go

@@ -0,0 +1,5 @@
+package installer
+
+const (
+	LogFile = "installer.log"
+)

client/internal/updatemanager/installer/procattr_darwin.go

@@ -0,0 +1,15 @@
+package installer
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+// setUpdaterProcAttr configures the updater process to run in a new session,
+// making it independent of the parent daemon process. This ensures the updater
+// survives when the daemon is stopped during the pkg installation.
+func setUpdaterProcAttr(cmd *exec.Cmd) {
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		Setsid: true,
+	}
+}

client/internal/updatemanager/installer/procattr_windows.go

@@ -0,0 +1,14 @@
+package installer
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+// setUpdaterProcAttr configures the updater process to run detached from the parent,
+// making it independent of the parent daemon process.
+func setUpdaterProcAttr(cmd *exec.Cmd) {
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		CreationFlags: syscall.CREATE_NEW_PROCESS_GROUP | 0x00000008, // 0x00000008 is DETACHED_PROCESS
+	}
+}

client/internal/updatemanager/installer/repourl_dev.go

@@ -0,0 +1,7 @@
+//go:build devartifactsign
+
+package installer
+
+const (
+	DefaultSigningKeysBaseURL = "http://192.168.0.10:9089/signrepo"
+)

client/internal/updatemanager/installer/repourl_prod.go

@@ -0,0 +1,7 @@
+//go:build !devartifactsign
+
+package installer
+
+const (
+	DefaultSigningKeysBaseURL = "https://publickeys.netbird.io/artifact-signatures"
+)

client/internal/updatemanager/installer/result.go

@@ -0,0 +1,230 @@
+package installer
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/fsnotify/fsnotify"
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	resultFile = "result.json"
+)
+
+type Result struct {
+	Success    bool
+	Error      string
+	ExecutedAt time.Time
+}
+
+// ResultHandler handles reading and writing update results
+type ResultHandler struct {
+	resultFile string
+}
+
+// NewResultHandler creates a new communicator with the given directory path
+// The result file will be created as "result.json" in the specified directory
+func NewResultHandler(installerDir string) *ResultHandler {
+	// Create it if it doesn't exist
+	// do not care if already exists
+	_ = os.MkdirAll(installerDir, 0o700)
+
+	rh := &ResultHandler{
+		resultFile: filepath.Join(installerDir, resultFile),
+	}
+	return rh
+}
+
+func (rh *ResultHandler) GetErrorResultReason() string {
+	result, err := rh.tryReadResult()
+	if err == nil && !result.Success {
+		return result.Error
+	}
+
+	if err := rh.cleanup(); err != nil {
+		log.Warnf("failed to cleanup result file: %v", err)
+	}
+
+	return ""
+}
+
+func (rh *ResultHandler) WriteSuccess() error {
+	result := Result{
+		Success:    true,
+		ExecutedAt: time.Now(),
+	}
+	return rh.write(result)
+}
+
+func (rh *ResultHandler) WriteErr(errReason error) error {
+	result := Result{
+		Success:    false,
+		Error:      errReason.Error(),
+		ExecutedAt: time.Now(),
+	}
+	return rh.write(result)
+}
+
+func (rh *ResultHandler) Watch(ctx context.Context) (Result, error) {
+	log.Infof("start watching result: %s", rh.resultFile)
+
+	// Check if file already exists (updater finished before we started watching)
+	if result, err := rh.tryReadResult(); err == nil {
+		log.Infof("installer result: %v", result)
+		return result, nil
+	}
+
+	dir := filepath.Dir(rh.resultFile)
+
+	if err := rh.waitForDirectory(ctx, dir); err != nil {
+		return Result{}, err
+	}
+
+	return rh.watchForResultFile(ctx, dir)
+}
+
+func (rh *ResultHandler) waitForDirectory(ctx context.Context, dir string) error {
+	ticker := time.NewTicker(300 * time.Millisecond)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		case <-ticker.C:
+			if info, err := os.Stat(dir); err == nil && info.IsDir() {
+				return nil
+			}
+		}
+	}
+}
+
+func (rh *ResultHandler) watchForResultFile(ctx context.Context, dir string) (Result, error) {
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		log.Error(err)
+		return Result{}, err
+	}
+
+	defer func() {
+		if err := watcher.Close(); err != nil {
+			log.Warnf("failed to close watcher: %v", err)
+		}
+	}()
+
+	if err := watcher.Add(dir); err != nil {
+		return Result{}, fmt.Errorf("failed to watch directory: %v", err)
+	}
+
+	// Check again after setting up watcher to avoid race condition
+	// (file could have been created between initial check and watcher setup)
+	if result, err := rh.tryReadResult(); err == nil {
+		log.Infof("installer result: %v", result)
+		return result, nil
+	}
+
+	for {
+		select {
+		case <-ctx.Done():
+			return Result{}, ctx.Err()
+		case event, ok := <-watcher.Events:
+			if !ok {
+				return Result{}, errors.New("watcher closed unexpectedly")
+			}
+
+			if result, done := rh.handleWatchEvent(event); done {
+				return result, nil
+			}
+		case err, ok := <-watcher.Errors:
+			if !ok {
+				return Result{}, errors.New("watcher closed unexpectedly")
+			}
+			return Result{}, fmt.Errorf("watcher error: %w", err)
+		}
+	}
+}
+
+func (rh *ResultHandler) handleWatchEvent(event fsnotify.Event) (Result, bool) {
+	if event.Name != rh.resultFile {
+		return Result{}, false
+	}
+
+	if event.Has(fsnotify.Create) {
+		result, err := rh.tryReadResult()
+		if err != nil {
+			log.Debugf("error while reading result: %v", err)
+			return result, true
+		}
+		log.Infof("installer result: %v", result)
+		return result, true
+	}
+
+	return Result{}, false
+}
+
+// Write writes the update result to a file for the UI to read
+func (rh *ResultHandler) write(result Result) error {
+	log.Infof("write out installer result to: %s", rh.resultFile)
+	// Ensure directory exists
+	dir := filepath.Dir(rh.resultFile)
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		log.Errorf("failed to create directory %s: %v", dir, err)
+		return err
+	}
+
+	data, err := json.Marshal(result)
+	if err != nil {
+		return err
+	}
+
+	// Write to a temporary file first, then rename for atomic operation
+	tmpPath := rh.resultFile + ".tmp"
+	if err := os.WriteFile(tmpPath, data, 0o600); err != nil {
+		log.Errorf("failed to create temp file: %s", err)
+		return err
+	}
+
+	// Atomic rename
+	if err := os.Rename(tmpPath, rh.resultFile); err != nil {
+		if cleanupErr := os.Remove(tmpPath); cleanupErr != nil {
+			log.Warnf("Failed to remove temp result file: %v", err)
+		}
+		return err
+	}
+
+	return nil
+}
+
+func (rh *ResultHandler) cleanup() error {
+	err := os.Remove(rh.resultFile)
+	if err != nil && !os.IsNotExist(err) {
+		return err
+	}
+	log.Debugf("delete installer result file: %s", rh.resultFile)
+	return nil
+}
+
+// tryReadResult attempts to read and validate the result file
+func (rh *ResultHandler) tryReadResult() (Result, error) {
+	data, err := os.ReadFile(rh.resultFile)
+	if err != nil {
+		return Result{}, err
+	}
+
+	var result Result
+	if err := json.Unmarshal(data, &result); err != nil {
+		return Result{}, fmt.Errorf("invalid result format: %w", err)
+	}
+
+	if err := rh.cleanup(); err != nil {
+		log.Warnf("failed to cleanup result file: %v", err)
+	}
+
+	return result, nil
+}

client/internal/updatemanager/installer/types.go

@@ -0,0 +1,14 @@
+package installer
+
+type Type struct {
+	name         string
+	downloadable bool
+}
+
+func (t Type) String() string {
+	return t.name
+}
+
+func (t Type) Downloadable() bool {
+	return t.downloadable
+}

client/internal/updatemanager/installer/types_darwin.go

@@ -0,0 +1,22 @@
+package installer
+
+import (
+	"context"
+	"os/exec"
+)
+
+var (
+	TypeHomebrew = Type{name: "Homebrew", downloadable: false}
+	TypePKG      = Type{name: "pkg", downloadable: true}
+)
+
+func TypeOfInstaller(ctx context.Context) Type {
+	cmd := exec.CommandContext(ctx, "pkgutil", "--pkg-info", "io.netbird.client")
+	_, err := cmd.Output()
+	if err != nil && cmd.ProcessState.ExitCode() == 1 {
+		// Not installed using pkg file, thus installed using Homebrew
+
+		return TypeHomebrew
+	}
+	return TypePKG
+}

client/internal/updatemanager/installer/types_windows.go

@@ -0,0 +1,51 @@
+package installer
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/sys/windows/registry"
+)
+
+const (
+	uninstallKeyPath64 = `SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Netbird`
+	uninstallKeyPath32 = `SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Netbird`
+)
+
+var (
+	TypeExe = Type{name: "EXE", downloadable: true}
+	TypeMSI = Type{name: "MSI", downloadable: true}
+)
+
+func TypeOfInstaller(_ context.Context) Type {
+	paths := []string{uninstallKeyPath64, uninstallKeyPath32}
+
+	for _, path := range paths {
+		k, err := registry.OpenKey(registry.LOCAL_MACHINE, path, registry.QUERY_VALUE)
+		if err != nil {
+			continue
+		}
+
+		if err := k.Close(); err != nil {
+			log.Warnf("Error closing registry key: %v", err)
+		}
+		return TypeExe
+
+	}
+
+	log.Debug("No registry entry found for Netbird, assuming MSI installation")
+	return TypeMSI
+}
+
+func typeByFileExtension(filePath string) (Type, error) {
+	switch {
+	case strings.HasSuffix(strings.ToLower(filePath), ".exe"):
+		return TypeExe, nil
+	case strings.HasSuffix(strings.ToLower(filePath), ".msi"):
+		return TypeMSI, nil
+	default:
+		return Type{}, fmt.Errorf("unsupported installer type for file: %s", filePath)
+	}
+}

client/internal/updatemanager/manager.go

@@ -0,0 +1,374 @@
+//go:build windows || darwin
+
+package updatemanager
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"runtime"
+	"sync"
+	"time"
+
+	v "github.com/hashicorp/go-version"
+	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/internal/peer"
+	"github.com/netbirdio/netbird/client/internal/statemanager"
+	"github.com/netbirdio/netbird/client/internal/updatemanager/installer"
+	cProto "github.com/netbirdio/netbird/client/proto"
+	"github.com/netbirdio/netbird/version"
+)
+
+const (
+	latestVersion = "latest"
+	// this version will be ignored
+	developmentVersion = "development"
+)
+
+var errNoUpdateState = errors.New("no update state found")
+
+type UpdateState struct {
+	PreUpdateVersion string
+	TargetVersion    string
+}
+
+func (u UpdateState) Name() string {
+	return "autoUpdate"
+}
+
+type Manager struct {
+	statusRecorder *peer.Status
+	stateManager   *statemanager.Manager
+
+	lastTrigger    time.Time
+	mgmUpdateChan  chan struct{}
+	updateChannel  chan struct{}
+	currentVersion string
+	update         UpdateInterface
+	wg             sync.WaitGroup
+
+	cancel context.CancelFunc
+
+	expectedVersion       *v.Version
+	updateToLatestVersion bool
+
+	// updateMutex protect update and expectedVersion fields
+	updateMutex sync.Mutex
+
+	triggerUpdateFn func(context.Context, string) error
+}
+
+func NewManager(statusRecorder *peer.Status, stateManager *statemanager.Manager) (*Manager, error) {
+	if runtime.GOOS == "darwin" {
+		isBrew := !installer.TypeOfInstaller(context.Background()).Downloadable()
+		if isBrew {
+			log.Warnf("auto-update disabled on Home Brew installation")
+			return nil, fmt.Errorf("auto-update not supported on Home Brew installation yet")
+		}
+	}
+	return newManager(statusRecorder, stateManager)
+}
+
+func newManager(statusRecorder *peer.Status, stateManager *statemanager.Manager) (*Manager, error) {
+	manager := &Manager{
+		statusRecorder: statusRecorder,
+		stateManager:   stateManager,
+		mgmUpdateChan:  make(chan struct{}, 1),
+		updateChannel:  make(chan struct{}, 1),
+		currentVersion: version.NetbirdVersion(),
+		update:         version.NewUpdate("nb/client"),
+	}
+	manager.triggerUpdateFn = manager.triggerUpdate
+
+	stateManager.RegisterState(&UpdateState{})
+
+	return manager, nil
+}
+
+// CheckUpdateSuccess checks if the update was successful and send a notification.
+// It works without to start the update manager.
+func (m *Manager) CheckUpdateSuccess(ctx context.Context) {
+	reason := m.lastResultErrReason()
+	if reason != "" {
+		m.statusRecorder.PublishEvent(
+			cProto.SystemEvent_ERROR,
+			cProto.SystemEvent_SYSTEM,
+			"Auto-update failed",
+			fmt.Sprintf("Auto-update failed: %s", reason),
+			nil,
+		)
+	}
+
+	updateState, err := m.loadAndDeleteUpdateState(ctx)
+	if err != nil {
+		if errors.Is(err, errNoUpdateState) {
+			return
+		}
+		log.Errorf("failed to load update state: %v", err)
+		return
+	}
+
+	log.Debugf("auto-update state loaded, %v", *updateState)
+
+	if updateState.TargetVersion == m.currentVersion {
+		m.statusRecorder.PublishEvent(
+			cProto.SystemEvent_INFO,
+			cProto.SystemEvent_SYSTEM,
+			"Auto-update completed",
+			fmt.Sprintf("Your NetBird Client was auto-updated to version %s", m.currentVersion),
+			nil,
+		)
+		return
+	}
+}
+
+func (m *Manager) Start(ctx context.Context) {
+	if m.cancel != nil {
+		log.Errorf("Manager already started")
+		return
+	}
+
+	m.update.SetDaemonVersion(m.currentVersion)
+	m.update.SetOnUpdateListener(func() {
+		select {
+		case m.updateChannel <- struct{}{}:
+		default:
+		}
+	})
+	go m.update.StartFetcher()
+
+	ctx, cancel := context.WithCancel(ctx)
+	m.cancel = cancel
+
+	m.wg.Add(1)
+	go m.updateLoop(ctx)
+}
+
+func (m *Manager) SetVersion(expectedVersion string) {
+	log.Infof("set expected agent version for upgrade: %s", expectedVersion)
+	if m.cancel == nil {
+		log.Errorf("manager not started")
+		return
+	}
+
+	m.updateMutex.Lock()
+	defer m.updateMutex.Unlock()
+
+	if expectedVersion == "" {
+		log.Errorf("empty expected version provided")
+		m.expectedVersion = nil
+		m.updateToLatestVersion = false
+		return
+	}
+
+	if expectedVersion == latestVersion {
+		m.updateToLatestVersion = true
+		m.expectedVersion = nil
+	} else {
+		expectedSemVer, err := v.NewVersion(expectedVersion)
+		if err != nil {
+			log.Errorf("error parsing version: %v", err)
+			return
+		}
+		if m.expectedVersion != nil && m.expectedVersion.Equal(expectedSemVer) {
+			return
+		}
+		m.expectedVersion = expectedSemVer
+		m.updateToLatestVersion = false
+	}
+
+	select {
+	case m.mgmUpdateChan <- struct{}{}:
+	default:
+	}
+}
+
+func (m *Manager) Stop() {
+	if m.cancel == nil {
+		return
+	}
+
+	m.cancel()
+	m.updateMutex.Lock()
+	if m.update != nil {
+		m.update.StopWatch()
+		m.update = nil
+	}
+	m.updateMutex.Unlock()
+
+	m.wg.Wait()
+}
+
+func (m *Manager) onContextCancel() {
+	if m.cancel == nil {
+		return
+	}
+
+	m.updateMutex.Lock()
+	defer m.updateMutex.Unlock()
+	if m.update != nil {
+		m.update.StopWatch()
+		m.update = nil
+	}
+}
+
+func (m *Manager) updateLoop(ctx context.Context) {
+	defer m.wg.Done()
+
+	for {
+		select {
+		case <-ctx.Done():
+			m.onContextCancel()
+			return
+		case <-m.mgmUpdateChan:
+		case <-m.updateChannel:
+			log.Infof("fetched new version info")
+		}
+
+		m.handleUpdate(ctx)
+	}
+}
+
+func (m *Manager) handleUpdate(ctx context.Context) {
+	var updateVersion *v.Version
+
+	m.updateMutex.Lock()
+	if m.update == nil {
+		m.updateMutex.Unlock()
+		return
+	}
+
+	expectedVersion := m.expectedVersion
+	useLatest := m.updateToLatestVersion
+	curLatestVersion := m.update.LatestVersion()
+	m.updateMutex.Unlock()
+
+	switch {
+	// Resolve "latest" to actual version
+	case useLatest:
+		if curLatestVersion == nil {
+			log.Tracef("latest version not fetched yet")
+			return
+		}
+		updateVersion = curLatestVersion
+	// Update to specific version
+	case expectedVersion != nil:
+		updateVersion = expectedVersion
+	default:
+		log.Debugf("no expected version information set")
+		return
+	}
+
+	log.Debugf("checking update option, current version: %s, target version: %s", m.currentVersion, updateVersion)
+	if !m.shouldUpdate(updateVersion) {
+		return
+	}
+
+	m.lastTrigger = time.Now()
+	log.Infof("Auto-update triggered, current version: %s, target version: %s", m.currentVersion, updateVersion)
+	m.statusRecorder.PublishEvent(
+		cProto.SystemEvent_CRITICAL,
+		cProto.SystemEvent_SYSTEM,
+		"Automatically updating client",
+		"Your client version is older than auto-update version set in Management, updating client now.",
+		nil,
+	)
+
+	m.statusRecorder.PublishEvent(
+		cProto.SystemEvent_CRITICAL,
+		cProto.SystemEvent_SYSTEM,
+		"",
+		"",
+		map[string]string{"progress_window": "show", "version": updateVersion.String()},
+	)
+
+	updateState := UpdateState{
+		PreUpdateVersion: m.currentVersion,
+		TargetVersion:    updateVersion.String(),
+	}
+
+	if err := m.stateManager.UpdateState(updateState); err != nil {
+		log.Warnf("failed to update state: %v", err)
+	} else {
+		if err = m.stateManager.PersistState(ctx); err != nil {
+			log.Warnf("failed to persist state: %v", err)
+		}
+	}
+
+	if err := m.triggerUpdateFn(ctx, updateVersion.String()); err != nil {
+		log.Errorf("Error triggering auto-update: %v", err)
+		m.statusRecorder.PublishEvent(
+			cProto.SystemEvent_ERROR,
+			cProto.SystemEvent_SYSTEM,
+			"Auto-update failed",
+			fmt.Sprintf("Auto-update failed: %v", err),
+			nil,
+		)
+	}
+}
+
+// loadAndDeleteUpdateState loads the update state, deletes it from storage, and returns it.
+// Returns nil if no state exists.
+func (m *Manager) loadAndDeleteUpdateState(ctx context.Context) (*UpdateState, error) {
+	stateType := &UpdateState{}
+
+	m.stateManager.RegisterState(stateType)
+	if err := m.stateManager.LoadState(stateType); err != nil {
+		return nil, fmt.Errorf("load state: %w", err)
+	}
+
+	state := m.stateManager.GetState(stateType)
+	if state == nil {
+		return nil, errNoUpdateState
+	}
+
+	updateState, ok := state.(*UpdateState)
+	if !ok {
+		return nil, fmt.Errorf("failed to cast state to UpdateState")
+	}
+
+	if err := m.stateManager.DeleteState(updateState); err != nil {
+		return nil, fmt.Errorf("delete state: %w", err)
+	}
+
+	if err := m.stateManager.PersistState(ctx); err != nil {
+		return nil, fmt.Errorf("persist state: %w", err)
+	}
+
+	return updateState, nil
+}
+
+func (m *Manager) shouldUpdate(updateVersion *v.Version) bool {
+	if m.currentVersion == developmentVersion {
+		log.Debugf("skipping auto-update, running development version")
+		return false
+	}
+	currentVersion, err := v.NewVersion(m.currentVersion)
+	if err != nil {
+		log.Errorf("error checking for update, error parsing version `%s`: %v", m.currentVersion, err)
+		return false
+	}
+	if currentVersion.GreaterThanOrEqual(updateVersion) {
+		log.Infof("current version (%s) is equal to or higher than auto-update version (%s)", m.currentVersion, updateVersion)
+		return false
+	}
+
+	if time.Since(m.lastTrigger) < 5*time.Minute {
+		log.Debugf("skipping auto-update, last update was %s ago", time.Since(m.lastTrigger))
+		return false
+	}
+
+	return true
+}
+
+func (m *Manager) lastResultErrReason() string {
+	inst := installer.New()
+	result := installer.NewResultHandler(inst.TempDir())
+	return result.GetErrorResultReason()
+}
+
+func (m *Manager) triggerUpdate(ctx context.Context, targetVersion string) error {
+	inst := installer.New()
+	return inst.RunInstallation(ctx, targetVersion)
+}

client/internal/updatemanager/manager_test.go

@@ -0,0 +1,214 @@
+//go:build windows || darwin
+
+package updatemanager
+
+import (
+	"context"
+	"fmt"
+	"path"
+	"testing"
+	"time"
+
+	v "github.com/hashicorp/go-version"
+
+	"github.com/netbirdio/netbird/client/internal/peer"
+	"github.com/netbirdio/netbird/client/internal/statemanager"
+)
+
+type versionUpdateMock struct {
+	latestVersion *v.Version
+	onUpdate      func()
+}
+
+func (v versionUpdateMock) StopWatch() {}
+
+func (v versionUpdateMock) SetDaemonVersion(newVersion string) bool {
+	return false
+}
+
+func (v *versionUpdateMock) SetOnUpdateListener(updateFn func()) {
+	v.onUpdate = updateFn
+}
+
+func (v versionUpdateMock) LatestVersion() *v.Version {
+	return v.latestVersion
+}
+
+func (v versionUpdateMock) StartFetcher() {}
+
+func Test_LatestVersion(t *testing.T) {
+	testMatrix := []struct {
+		name                 string
+		daemonVersion        string
+		initialLatestVersion *v.Version
+		latestVersion        *v.Version
+		shouldUpdateInit     bool
+		shouldUpdateLater    bool
+	}{
+		{
+			name:                 "Should only trigger update once due to time between triggers being < 5 Minutes",
+			daemonVersion:        "1.0.0",
+			initialLatestVersion: v.Must(v.NewSemver("1.0.1")),
+			latestVersion:        v.Must(v.NewSemver("1.0.2")),
+			shouldUpdateInit:     true,
+			shouldUpdateLater:    false,
+		},
+		{
+			name:                 "Shouldn't update initially, but should update as soon as latest version is fetched",
+			daemonVersion:        "1.0.0",
+			initialLatestVersion: nil,
+			latestVersion:        v.Must(v.NewSemver("1.0.1")),
+			shouldUpdateInit:     false,
+			shouldUpdateLater:    true,
+		},
+	}
+
+	for idx, c := range testMatrix {
+		mockUpdate := &versionUpdateMock{latestVersion: c.initialLatestVersion}
+		tmpFile := path.Join(t.TempDir(), fmt.Sprintf("update-test-%d.json", idx))
+		m, _ := newManager(peer.NewRecorder(""), statemanager.New(tmpFile))
+		m.update = mockUpdate
+
+		targetVersionChan := make(chan string, 1)
+
+		m.triggerUpdateFn = func(ctx context.Context, targetVersion string) error {
+			targetVersionChan <- targetVersion
+			return nil
+		}
+		m.currentVersion = c.daemonVersion
+		m.Start(context.Background())
+		m.SetVersion("latest")
+		var triggeredInit bool
+		select {
+		case targetVersion := <-targetVersionChan:
+			if targetVersion != c.initialLatestVersion.String() {
+				t.Errorf("%s: Initial update version mismatch, expected %v, got %v", c.name, c.initialLatestVersion.String(), targetVersion)
+			}
+			triggeredInit = true
+		case <-time.After(10 * time.Millisecond):
+			triggeredInit = false
+		}
+		if triggeredInit != c.shouldUpdateInit {
+			t.Errorf("%s: Initial update trigger mismatch, expected %v, got %v", c.name, c.shouldUpdateInit, triggeredInit)
+		}
+
+		mockUpdate.latestVersion = c.latestVersion
+		mockUpdate.onUpdate()
+
+		var triggeredLater bool
+		select {
+		case targetVersion := <-targetVersionChan:
+			if targetVersion != c.latestVersion.String() {
+				t.Errorf("%s: Update version mismatch, expected %v, got %v", c.name, c.latestVersion.String(), targetVersion)
+			}
+			triggeredLater = true
+		case <-time.After(10 * time.Millisecond):
+			triggeredLater = false
+		}
+		if triggeredLater != c.shouldUpdateLater {
+			t.Errorf("%s: Update trigger mismatch, expected %v, got %v", c.name, c.shouldUpdateLater, triggeredLater)
+		}
+
+		m.Stop()
+	}
+}
+
+func Test_HandleUpdate(t *testing.T) {
+	testMatrix := []struct {
+		name            string
+		daemonVersion   string
+		latestVersion   *v.Version
+		expectedVersion string
+		shouldUpdate    bool
+	}{
+		{
+			name:            "Update to a specific version should update regardless of if latestVersion is available yet",
+			daemonVersion:   "0.55.0",
+			latestVersion:   nil,
+			expectedVersion: "0.56.0",
+			shouldUpdate:    true,
+		},
+		{
+			name:            "Update to specific version should not update if version matches",
+			daemonVersion:   "0.55.0",
+			latestVersion:   nil,
+			expectedVersion: "0.55.0",
+			shouldUpdate:    false,
+		},
+		{
+			name:            "Update to specific version should not update if current version is newer",
+			daemonVersion:   "0.55.0",
+			latestVersion:   nil,
+			expectedVersion: "0.54.0",
+			shouldUpdate:    false,
+		},
+		{
+			name:            "Update to latest version should update if latest is newer",
+			daemonVersion:   "0.55.0",
+			latestVersion:   v.Must(v.NewSemver("0.56.0")),
+			expectedVersion: "latest",
+			shouldUpdate:    true,
+		},
+		{
+			name:            "Update to latest version should not update if latest == current",
+			daemonVersion:   "0.56.0",
+			latestVersion:   v.Must(v.NewSemver("0.56.0")),
+			expectedVersion: "latest",
+			shouldUpdate:    false,
+		},
+		{
+			name:            "Should not update if daemon version is invalid",
+			daemonVersion:   "development",
+			latestVersion:   v.Must(v.NewSemver("1.0.0")),
+			expectedVersion: "latest",
+			shouldUpdate:    false,
+		},
+		{
+			name:            "Should not update if expecting latest and latest version is unavailable",
+			daemonVersion:   "0.55.0",
+			latestVersion:   nil,
+			expectedVersion: "latest",
+			shouldUpdate:    false,
+		},
+		{
+			name:            "Should not update if expected version is invalid",
+			daemonVersion:   "0.55.0",
+			latestVersion:   nil,
+			expectedVersion: "development",
+			shouldUpdate:    false,
+		},
+	}
+	for idx, c := range testMatrix {
+		tmpFile := path.Join(t.TempDir(), fmt.Sprintf("update-test-%d.json", idx))
+		m, _ := newManager(peer.NewRecorder(""), statemanager.New(tmpFile))
+		m.update = &versionUpdateMock{latestVersion: c.latestVersion}
+		targetVersionChan := make(chan string, 1)
+
+		m.triggerUpdateFn = func(ctx context.Context, targetVersion string) error {
+			targetVersionChan <- targetVersion
+			return nil
+		}
+
+		m.currentVersion = c.daemonVersion
+		m.Start(context.Background())
+		m.SetVersion(c.expectedVersion)
+
+		var updateTriggered bool
+		select {
+		case targetVersion := <-targetVersionChan:
+			if c.expectedVersion == "latest" && targetVersion != c.latestVersion.String() {
+				t.Errorf("%s: Update version mismatch, expected %v, got %v", c.name, c.latestVersion.String(), targetVersion)
+			} else if c.expectedVersion != "latest" && targetVersion != c.expectedVersion {
+				t.Errorf("%s: Update version mismatch, expected %v, got %v", c.name, c.expectedVersion, targetVersion)
+			}
+			updateTriggered = true
+		case <-time.After(10 * time.Millisecond):
+			updateTriggered = false
+		}
+
+		if updateTriggered != c.shouldUpdate {
+			t.Errorf("%s: Update trigger mismatch, expected %v, got %v", c.name, c.shouldUpdate, updateTriggered)
+		}
+		m.Stop()
+	}
+}

client/internal/updatemanager/manager_unsupported.go

@@ -0,0 +1,39 @@
+//go:build !windows && !darwin
+
+package updatemanager
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/netbirdio/netbird/client/internal/peer"
+	"github.com/netbirdio/netbird/client/internal/statemanager"
+)
+
+// Manager is a no-op stub for unsupported platforms
+type Manager struct{}
+
+// NewManager returns a no-op manager for unsupported platforms
+func NewManager(statusRecorder *peer.Status, stateManager *statemanager.Manager) (*Manager, error) {
+	return nil, fmt.Errorf("update manager is not supported on this platform")
+}
+
+// CheckUpdateSuccess is a no-op on unsupported platforms
+func (m *Manager) CheckUpdateSuccess(ctx context.Context) {
+	// no-op
+}
+
+// Start is a no-op on unsupported platforms
+func (m *Manager) Start(ctx context.Context) {
+	// no-op
+}
+
+// SetVersion is a no-op on unsupported platforms
+func (m *Manager) SetVersion(expectedVersion string) {
+	// no-op
+}
+
+// Stop is a no-op on unsupported platforms
+func (m *Manager) Stop() {
+	// no-op
+}

client/internal/updatemanager/reposign/artifact.go

@@ -0,0 +1,302 @@
+package reposign
+
+import (
+	"crypto/ed25519"
+	"crypto/rand"
+	"encoding/binary"
+	"encoding/json"
+	"encoding/pem"
+	"errors"
+	"fmt"
+	"hash"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/crypto/blake2s"
+)
+
+const (
+	tagArtifactPrivate = "ARTIFACT PRIVATE KEY"
+	tagArtifactPublic  = "ARTIFACT PUBLIC KEY"
+
+	maxArtifactKeySignatureAge = 10 * 365 * 24 * time.Hour
+	maxArtifactSignatureAge    = 10 * 365 * 24 * time.Hour
+)
+
+// ArtifactHash wraps a hash.Hash and counts bytes written
+type ArtifactHash struct {
+	hash.Hash
+}
+
+// NewArtifactHash returns an initialized ArtifactHash using BLAKE2s
+func NewArtifactHash() *ArtifactHash {
+	h, err := blake2s.New256(nil)
+	if err != nil {
+		panic(err) // Should never happen with nil Key
+	}
+	return &ArtifactHash{Hash: h}
+}
+
+func (ah *ArtifactHash) Write(b []byte) (int, error) {
+	return ah.Hash.Write(b)
+}
+
+// ArtifactKey is a signing Key used to sign artifacts
+type ArtifactKey struct {
+	PrivateKey
+}
+
+func (k ArtifactKey) String() string {
+	return fmt.Sprintf(
+		"ArtifactKey[ID=%s, CreatedAt=%s, ExpiresAt=%s]",
+		k.Metadata.ID,
+		k.Metadata.CreatedAt.Format(time.RFC3339),
+		k.Metadata.ExpiresAt.Format(time.RFC3339),
+	)
+}
+
+func GenerateArtifactKey(rootKey *RootKey, expiration time.Duration) (*ArtifactKey, []byte, []byte, []byte, error) {
+	// Verify root key is still valid
+	if !rootKey.Metadata.ExpiresAt.IsZero() && time.Now().After(rootKey.Metadata.ExpiresAt) {
+		return nil, nil, nil, nil, fmt.Errorf("root key has expired on %s", rootKey.Metadata.ExpiresAt.Format(time.RFC3339))
+	}
+
+	now := time.Now()
+	expirationTime := now.Add(expiration)
+	pub, priv, err := ed25519.GenerateKey(rand.Reader)
+	if err != nil {
+		return nil, nil, nil, nil, fmt.Errorf("generate ed25519 key: %w", err)
+	}
+
+	metadata := KeyMetadata{
+		ID:        computeKeyID(pub),
+		CreatedAt: now.UTC(),
+		ExpiresAt: expirationTime.UTC(),
+	}
+
+	ak := &ArtifactKey{
+		PrivateKey{
+			Key:      priv,
+			Metadata: metadata,
+		},
+	}
+
+	// Marshal PrivateKey struct to JSON
+	privJSON, err := json.Marshal(ak.PrivateKey)
+	if err != nil {
+		return nil, nil, nil, nil, fmt.Errorf("failed to marshal private key: %w", err)
+	}
+
+	// Marshal PublicKey struct to JSON
+	pubKey := PublicKey{
+		Key:      pub,
+		Metadata: metadata,
+	}
+	pubJSON, err := json.Marshal(pubKey)
+	if err != nil {
+		return nil, nil, nil, nil, fmt.Errorf("failed to marshal public key: %w", err)
+	}
+
+	// Encode to PEM with metadata embedded in bytes
+	privPEM := pem.EncodeToMemory(&pem.Block{
+		Type:  tagArtifactPrivate,
+		Bytes: privJSON,
+	})
+
+	pubPEM := pem.EncodeToMemory(&pem.Block{
+		Type:  tagArtifactPublic,
+		Bytes: pubJSON,
+	})
+
+	// Sign the public key with the root key
+	signature, err := SignArtifactKey(*rootKey, pubPEM)
+	if err != nil {
+		return nil, nil, nil, nil, fmt.Errorf("failed to sign artifact key: %w", err)
+	}
+
+	return ak, privPEM, pubPEM, signature, nil
+}
+
+func ParseArtifactKey(privKeyPEM []byte) (ArtifactKey, error) {
+	pk, err := parsePrivateKey(privKeyPEM, tagArtifactPrivate)
+	if err != nil {
+		return ArtifactKey{}, fmt.Errorf("failed to parse artifact Key: %w", err)
+	}
+	return ArtifactKey{pk}, nil
+}
+
+func ParseArtifactPubKey(data []byte) (PublicKey, error) {
+	pk, _, err := parsePublicKey(data, tagArtifactPublic)
+	return pk, err
+}
+
+func BundleArtifactKeys(rootKey *RootKey, keys []PublicKey) ([]byte, []byte, error) {
+	if len(keys) == 0 {
+		return nil, nil, errors.New("no keys to bundle")
+	}
+
+	// Create bundle by concatenating PEM-encoded keys
+	var pubBundle []byte
+
+	for _, pk := range keys {
+		// Marshal PublicKey struct to JSON
+		pubJSON, err := json.Marshal(pk)
+		if err != nil {
+			return nil, nil, fmt.Errorf("failed to marshal public key: %w", err)
+		}
+
+		// Encode to PEM
+		pubPEM := pem.EncodeToMemory(&pem.Block{
+			Type:  tagArtifactPublic,
+			Bytes: pubJSON,
+		})
+
+		pubBundle = append(pubBundle, pubPEM...)
+	}
+
+	// Sign the entire bundle with the root key
+	signature, err := SignArtifactKey(*rootKey, pubBundle)
+	if err != nil {
+		return nil, nil, fmt.Errorf("failed to sign artifact key bundle: %w", err)
+	}
+
+	return pubBundle, signature, nil
+}
+
+func ValidateArtifactKeys(publicRootKeys []PublicKey, data []byte, signature Signature, revocationList *RevocationList) ([]PublicKey, error) {
+	now := time.Now().UTC()
+	if signature.Timestamp.After(now.Add(maxClockSkew)) {
+		err := fmt.Errorf("signature timestamp is in the future: %v", signature.Timestamp)
+		log.Debugf("artifact signature error: %v", err)
+		return nil, err
+	}
+	if now.Sub(signature.Timestamp) > maxArtifactKeySignatureAge {
+		err := fmt.Errorf("signature is too old: %v (created %v)", now.Sub(signature.Timestamp), signature.Timestamp)
+		log.Debugf("artifact signature error: %v", err)
+		return nil, err
+	}
+
+	// Reconstruct the signed message: artifact_key_data || timestamp
+	msg := make([]byte, 0, len(data)+8)
+	msg = append(msg, data...)
+	msg = binary.LittleEndian.AppendUint64(msg, uint64(signature.Timestamp.Unix()))
+
+	if !verifyAny(publicRootKeys, msg, signature.Signature) {
+		return nil, errors.New("failed to verify signature of artifact keys")
+	}
+
+	pubKeys, err := parsePublicKeyBundle(data, tagArtifactPublic)
+	if err != nil {
+		log.Debugf("failed to parse public keys: %s", err)
+		return nil, err
+	}
+
+	validKeys := make([]PublicKey, 0, len(pubKeys))
+	for _, pubKey := range pubKeys {
+		// Filter out expired keys
+		if !pubKey.Metadata.ExpiresAt.IsZero() && now.After(pubKey.Metadata.ExpiresAt) {
+			log.Debugf("Key %s is expired at %v (current time %v)",
+				pubKey.Metadata.ID, pubKey.Metadata.ExpiresAt, now)
+			continue
+		}
+
+		if revocationList != nil {
+			if revTime, revoked := revocationList.Revoked[pubKey.Metadata.ID]; revoked {
+				log.Debugf("Key %s is revoked as of %v (created %v)",
+					pubKey.Metadata.ID, revTime, pubKey.Metadata.CreatedAt)
+				continue
+			}
+		}
+		validKeys = append(validKeys, pubKey)
+	}
+
+	if len(validKeys) == 0 {
+		log.Debugf("no valid public keys found for artifact keys")
+		return nil, fmt.Errorf("all %d artifact keys are revoked", len(pubKeys))
+	}
+
+	return validKeys, nil
+}
+
+func ValidateArtifact(artifactPubKeys []PublicKey, data []byte, signature Signature) error {
+	// Validate signature timestamp
+	now := time.Now().UTC()
+	if signature.Timestamp.After(now.Add(maxClockSkew)) {
+		err := fmt.Errorf("artifact signature timestamp is in the future: %v", signature.Timestamp)
+		log.Debugf("failed to verify signature of artifact: %s", err)
+		return err
+	}
+	if now.Sub(signature.Timestamp) > maxArtifactSignatureAge {
+		return fmt.Errorf("artifact signature is too old: %v (created %v)",
+			now.Sub(signature.Timestamp), signature.Timestamp)
+	}
+
+	h := NewArtifactHash()
+	if _, err := h.Write(data); err != nil {
+		return fmt.Errorf("failed to hash artifact: %w", err)
+	}
+	hash := h.Sum(nil)
+
+	// Reconstruct the signed message: hash || length || timestamp
+	msg := make([]byte, 0, len(hash)+8+8)
+	msg = append(msg, hash...)
+	msg = binary.LittleEndian.AppendUint64(msg, uint64(len(data)))
+	msg = binary.LittleEndian.AppendUint64(msg, uint64(signature.Timestamp.Unix()))
+
+	// Find matching Key and verify
+	for _, keyInfo := range artifactPubKeys {
+		if keyInfo.Metadata.ID == signature.KeyID {
+			// Check Key expiration
+			if !keyInfo.Metadata.ExpiresAt.IsZero() &&
+				signature.Timestamp.After(keyInfo.Metadata.ExpiresAt) {
+				return fmt.Errorf("signing Key %s expired at %v, signature from %v",
+					signature.KeyID, keyInfo.Metadata.ExpiresAt, signature.Timestamp)
+			}
+
+			if ed25519.Verify(keyInfo.Key, msg, signature.Signature) {
+				log.Debugf("artifact verified successfully with Key: %s", signature.KeyID)
+				return nil
+			}
+			return fmt.Errorf("signature verification failed for Key %s", signature.KeyID)
+		}
+	}
+
+	return fmt.Errorf("no signing Key found with ID %s", signature.KeyID)
+}
+
+func SignData(artifactKey ArtifactKey, data []byte) ([]byte, error) {
+	if len(data) == 0 { // Check happens too late
+		return nil, fmt.Errorf("artifact length must be positive, got %d", len(data))
+	}
+
+	h := NewArtifactHash()
+	if _, err := h.Write(data); err != nil {
+		return nil, fmt.Errorf("failed to write artifact hash: %w", err)
+	}
+
+	timestamp := time.Now().UTC()
+
+	if !artifactKey.Metadata.ExpiresAt.IsZero() && timestamp.After(artifactKey.Metadata.ExpiresAt) {
+		return nil, fmt.Errorf("artifact key expired at %v", artifactKey.Metadata.ExpiresAt)
+	}
+
+	hash := h.Sum(nil)
+
+	// Create message: hash || length || timestamp
+	msg := make([]byte, 0, len(hash)+8+8)
+	msg = append(msg, hash...)
+	msg = binary.LittleEndian.AppendUint64(msg, uint64(len(data)))
+	msg = binary.LittleEndian.AppendUint64(msg, uint64(timestamp.Unix()))
+
+	sig := ed25519.Sign(artifactKey.Key, msg)
+
+	bundle := Signature{
+		Signature: sig,
+		Timestamp: timestamp,
+		KeyID:     artifactKey.Metadata.ID,
+		Algorithm: "ed25519",
+		HashAlgo:  "blake2s",
+	}
+
+	return json.Marshal(bundle)
+}

client/internal/updatemanager/reposign/certs/root-pub.pem

@@ -0,0 +1,6 @@
+-----BEGIN ROOT PUBLIC KEY-----
+eyJLZXkiOiJoaGIxdGRDSEZNMFBuQWp1b2w2cXJ1QXRFbWFFSlg1QjFsZUNxWmpn
+V1pvPSIsIk1ldGFkYXRhIjp7ImlkIjoiOWE0OTg2NmI2MzE2MjNiNCIsImNyZWF0
+ZWRfYXQiOiIyMDI1LTExLTI0VDE3OjE1OjI4LjYyNzE3MzE3MVoiLCJleHBpcmVz
+X2F0IjoiMjAzNS0xMS0yMlQxNzoxNToyOC42MjcxNzMxNzFaIn19
+-----END ROOT PUBLIC KEY-----

client/internal/updatemanager/reposign/certsdev/root-pub.pem

@@ -0,0 +1,6 @@
+-----BEGIN ROOT PUBLIC KEY-----
+eyJLZXkiOiJyTDByVTN2MEFOZUNmbDZraitiUUd3TE1waU5CaUJLdVBWSnZtQzgr
+ZS84PSIsIk1ldGFkYXRhIjp7ImlkIjoiMTBkNjQyZTY2N2FmMDNkNCIsImNyZWF0
+ZWRfYXQiOiIyMDI1LTExLTIwVDE3OjI5OjI5LjE4MDk0NjMxNloiLCJleHBpcmVz
+X2F0IjoiMjAyNi0xMS0yMFQxNzoyOToyOS4xODA5NDYzMTZaIn19
+-----END ROOT PUBLIC KEY-----

client/internal/updatemanager/reposign/doc.go

@@ -0,0 +1,174 @@
+// Package reposign implements a cryptographic signing and verification system
+// for NetBird software update artifacts. It provides a hierarchical key
+// management system with support for key rotation, revocation, and secure
+// artifact distribution.
+//
+// # Architecture
+//
+// The package uses a two-tier key hierarchy:
+//
+//   - Root Keys: Long-lived keys that sign artifact keys. These are embedded
+//     in the client binary and establish the root of trust. Root keys should
+//     be kept offline and highly secured.
+//
+//   - Artifact Keys: Short-lived keys that sign release artifacts (binaries,
+//     packages, etc.). These are rotated regularly and can be revoked if
+//     compromised. Artifact keys are signed by root keys and distributed via
+//     a public repository.
+//
+// This separation allows for operational flexibility: artifact keys can be
+// rotated frequently without requiring client updates, while root keys remain
+// stable and embedded in the software.
+//
+// # Cryptographic Primitives
+//
+// The package uses strong, modern cryptographic algorithms:
+//   - Ed25519: Fast, secure digital signatures (no timing attacks)
+//   - BLAKE2s-256: Fast cryptographic hash for artifacts
+//   - SHA-256: Key ID generation
+//   - JSON: Structured key and signature serialization
+//   - PEM: Standard key encoding format
+//
+// # Security Features
+//
+// Timestamp Binding:
+//   - All signatures include cryptographically-bound timestamps
+//   - Prevents replay attacks and enforces signature freshness
+//   - Clock skew tolerance: 5 minutes
+//
+// Key Expiration:
+//   - All keys have expiration times
+//   - Expired keys are automatically rejected
+//   - Signing with an expired key fails immediately
+//
+// Key Revocation:
+//   - Compromised keys can be revoked via a signed revocation list
+//   - Revocation list is checked during artifact validation
+//   - Revoked keys are filtered out before artifact verification
+//
+// # File Structure
+//
+// The package expects the following file layout in the key repository:
+//
+//	signrepo/
+//	  artifact-key-pub.pem      # Bundle of artifact public keys
+//	  artifact-key-pub.pem.sig  # Root signature of the bundle
+//	  revocation-list.json      # List of revoked key IDs
+//	  revocation-list.json.sig  # Root signature of revocation list
+//
+// And in the artifacts repository:
+//
+//	releases/
+//	  v0.28.0/
+//	    netbird-linux-amd64
+//	    netbird-linux-amd64.sig   # Artifact signature
+//	    netbird-darwin-amd64
+//	    netbird-darwin-amd64.sig
+//	    ...
+//
+// # Embedded Root Keys
+//
+// Root public keys are embedded in the client binary at compile time:
+//   - Production keys: certs/ directory
+//   - Development keys: certsdev/ directory
+//
+// The build tag determines which keys are embedded:
+//   - Production builds: //go:build !devartifactsign
+//   - Development builds: //go:build devartifactsign
+//
+// This ensures that development artifacts cannot be verified using production
+// keys and vice versa.
+//
+// # Key Rotation Strategies
+//
+// Root Key Rotation:
+//
+// Root keys can be rotated without breaking existing clients by leveraging
+// the multi-key verification system. The loadEmbeddedPublicKeys function
+// reads ALL files from the certs/ directory and accepts signatures from ANY
+// of the embedded root keys.
+//
+// To rotate root keys:
+//
+//  1. Generate a new root key pair:
+//     newRootKey, privPEM, pubPEM, err := GenerateRootKey(10 * 365 * 24 * time.Hour)
+//
+//  2. Add the new public key to the certs/ directory as a new file:
+//     certs/
+//     root-pub-2024.pem    # Old key (keep this!)
+//     root-pub-2025.pem    # New key (add this)
+//
+//  3. Build new client versions with both keys embedded. The verification
+//     will accept signatures from either key.
+//
+//  4. Start signing new artifact keys with the new root key. Old clients
+//     with only the old root key will reject these, but new clients with
+//     both keys will accept them.
+//
+// Each file in certs/ can contain a single key or a bundle of keys (multiple
+// PEM blocks). The system will parse all keys from all files and use them
+// for verification. This provides maximum flexibility for key management.
+//
+// Important: Never remove all old root keys at once. Always maintain at least
+// one overlapping key between releases to ensure smooth transitions.
+//
+// Artifact Key Rotation:
+//
+// Artifact keys should be rotated regularly (e.g., every 90 days) using the
+// bundling mechanism. The BundleArtifactKeys function allows multiple artifact
+// keys to be bundled together in a single signed package, and ValidateArtifact
+// will accept signatures from ANY key in the bundle.
+//
+// To rotate artifact keys smoothly:
+//
+//  1. Generate a new artifact key while keeping the old one:
+//     newKey, newPrivPEM, newPubPEM, newSig, err := GenerateArtifactKey(rootKey, 90 * 24 * time.Hour)
+//     // Keep oldPubPEM and oldKey available
+//
+//  2. Create a bundle containing both old and new public keys
+//
+//  3. Upload the bundle and its signature to the key repository:
+//     signrepo/artifact-key-pub.pem      # Contains both keys
+//     signrepo/artifact-key-pub.pem.sig  # Root signature
+//
+//  4. Start signing new releases with the NEW key, but keep the bundle
+//     unchanged. Clients will download the bundle (containing both keys)
+//     and accept signatures from either key.
+//
+// Key bundle validation workflow:
+//  1. Client downloads artifact-key-pub.pem and artifact-key-pub.pem.sig
+//  2. ValidateArtifactKeys verifies the bundle signature with ANY embedded root key
+//  3. ValidateArtifactKeys parses all public keys from the bundle
+//  4. ValidateArtifactKeys filters out expired or revoked keys
+//  5. When verifying an artifact, ValidateArtifact tries each key until one succeeds
+//
+// This multi-key acceptance model enables overlapping validity periods and
+// smooth transitions without client update requirements.
+//
+// # Best Practices
+//
+// Root Key Management:
+//   - Generate root keys offline on an air-gapped machine
+//   - Store root private keys in hardware security modules (HSM) if possible
+//   - Use separate root keys for production and development
+//   - Rotate root keys infrequently (e.g., every 5-10 years)
+//   - Plan for root key rotation: embed multiple root public keys
+//
+// Artifact Key Management:
+//   - Rotate artifact keys regularly (e.g., every 90 days)
+//   - Use separate artifact keys for different release channels if needed
+//   - Revoke keys immediately upon suspected compromise
+//   - Bundle multiple artifact keys to enable smooth rotation
+//
+// Signing Process:
+//   - Sign artifacts in a secure CI/CD environment
+//   - Never commit private keys to version control
+//   - Use environment variables or secret management for keys
+//   - Verify signatures immediately after signing
+//
+// Distribution:
+//   - Serve keys and revocation lists from a reliable CDN
+//   - Use HTTPS for all key and artifact downloads
+//   - Monitor download failures and signature verification failures
+//   - Keep revocation list up to date
+package reposign

client/internal/updatemanager/reposign/embed_dev.go

@@ -0,0 +1,10 @@
+//go:build devartifactsign
+
+package reposign
+
+import "embed"
+
+//go:embed certsdev
+var embeddedCerts embed.FS
+
+const embeddedCertsDir = "certsdev"

client/internal/updatemanager/reposign/embed_prod.go

@@ -0,0 +1,10 @@
+//go:build !devartifactsign
+
+package reposign
+
+import "embed"
+
+//go:embed certs
+var embeddedCerts embed.FS
+
+const embeddedCertsDir = "certs"

client/internal/updatemanager/reposign/key.go

@@ -0,0 +1,171 @@
+package reposign
+
+import (
+	"crypto/ed25519"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"encoding/pem"
+	"errors"
+	"fmt"
+	"time"
+)
+
+const (
+	maxClockSkew = 5 * time.Minute
+)
+
+// KeyID is a unique identifier for a Key (first 8 bytes of SHA-256 of public Key)
+type KeyID [8]byte
+
+// computeKeyID generates a unique ID from a public Key
+func computeKeyID(pub ed25519.PublicKey) KeyID {
+	h := sha256.Sum256(pub)
+	var id KeyID
+	copy(id[:], h[:8])
+	return id
+}
+
+// MarshalJSON implements json.Marshaler for KeyID
+func (k KeyID) MarshalJSON() ([]byte, error) {
+	return json.Marshal(k.String())
+}
+
+// UnmarshalJSON implements json.Unmarshaler for KeyID
+func (k *KeyID) UnmarshalJSON(data []byte) error {
+	var s string
+	if err := json.Unmarshal(data, &s); err != nil {
+		return err
+	}
+
+	parsed, err := ParseKeyID(s)
+	if err != nil {
+		return err
+	}
+
+	*k = parsed
+	return nil
+}
+
+// ParseKeyID parses a hex string (16 hex chars = 8 bytes) into a KeyID.
+func ParseKeyID(s string) (KeyID, error) {
+	var id KeyID
+	if len(s) != 16 {
+		return id, fmt.Errorf("invalid KeyID length: got %d, want 16 hex chars (8 bytes)", len(s))
+	}
+
+	b, err := hex.DecodeString(s)
+	if err != nil {
+		return id, fmt.Errorf("failed to decode KeyID: %w", err)
+	}
+
+	copy(id[:], b)
+	return id, nil
+}
+
+func (k KeyID) String() string {
+	return fmt.Sprintf("%x", k[:])
+}
+
+// KeyMetadata contains versioning and lifecycle information for a Key
+type KeyMetadata struct {
+	ID        KeyID     `json:"id"`
+	CreatedAt time.Time `json:"created_at"`
+	ExpiresAt time.Time `json:"expires_at,omitempty"` // Optional expiration
+}
+
+// PublicKey wraps a public Key with its Metadata
+type PublicKey struct {
+	Key      ed25519.PublicKey
+	Metadata KeyMetadata
+}
+
+func parsePublicKeyBundle(bundle []byte, typeTag string) ([]PublicKey, error) {
+	var keys []PublicKey
+	for len(bundle) > 0 {
+		keyInfo, rest, err := parsePublicKey(bundle, typeTag)
+		if err != nil {
+			return nil, err
+		}
+		keys = append(keys, keyInfo)
+		bundle = rest
+	}
+	if len(keys) == 0 {
+		return nil, errors.New("no keys found in bundle")
+	}
+	return keys, nil
+}
+
+func parsePublicKey(data []byte, typeTag string) (PublicKey, []byte, error) {
+	b, rest := pem.Decode(data)
+	if b == nil {
+		return PublicKey{}, nil, errors.New("failed to decode PEM data")
+	}
+	if b.Type != typeTag {
+		return PublicKey{}, nil, fmt.Errorf("PEM type is %q, want %q", b.Type, typeTag)
+	}
+
+	// Unmarshal JSON-embedded format
+	var pub PublicKey
+	if err := json.Unmarshal(b.Bytes, &pub); err != nil {
+		return PublicKey{}, nil, fmt.Errorf("failed to unmarshal public key: %w", err)
+	}
+
+	// Validate key length
+	if len(pub.Key) != ed25519.PublicKeySize {
+		return PublicKey{}, nil, fmt.Errorf("incorrect Ed25519 public key size: expected %d, got %d",
+			ed25519.PublicKeySize, len(pub.Key))
+	}
+
+	// Always recompute ID to ensure integrity
+	pub.Metadata.ID = computeKeyID(pub.Key)
+
+	return pub, rest, nil
+}
+
+type PrivateKey struct {
+	Key      ed25519.PrivateKey
+	Metadata KeyMetadata
+}
+
+func parsePrivateKey(data []byte, typeTag string) (PrivateKey, error) {
+	b, rest := pem.Decode(data)
+	if b == nil {
+		return PrivateKey{}, errors.New("failed to decode PEM data")
+	}
+	if len(rest) > 0 {
+		return PrivateKey{}, errors.New("trailing PEM data")
+	}
+	if b.Type != typeTag {
+		return PrivateKey{}, fmt.Errorf("PEM type is %q, want %q", b.Type, typeTag)
+	}
+
+	// Unmarshal JSON-embedded format
+	var pk PrivateKey
+	if err := json.Unmarshal(b.Bytes, &pk); err != nil {
+		return PrivateKey{}, fmt.Errorf("failed to unmarshal private key: %w", err)
+	}
+
+	// Validate key length
+	if len(pk.Key) != ed25519.PrivateKeySize {
+		return PrivateKey{}, fmt.Errorf("incorrect Ed25519 private key size: expected %d, got %d",
+			ed25519.PrivateKeySize, len(pk.Key))
+	}
+
+	return pk, nil
+}
+
+func verifyAny(publicRootKeys []PublicKey, msg, sig []byte) bool {
+	// Verify with root keys
+	var rootKeys []ed25519.PublicKey
+	for _, r := range publicRootKeys {
+		rootKeys = append(rootKeys, r.Key)
+	}
+
+	for _, k := range rootKeys {
+		if ed25519.Verify(k, msg, sig) {
+			return true
+		}
+	}
+	return false
+}

client/internal/updatemanager/reposign/key_test.go

@@ -0,0 +1,636 @@
+package reposign
+
+import (
+	"crypto/ed25519"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/json"
+	"encoding/pem"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// Test KeyID functions
+
+func TestComputeKeyID(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	keyID := computeKeyID(pub)
+
+	// Verify it's the first 8 bytes of SHA-256
+	h := sha256.Sum256(pub)
+	expectedID := KeyID{}
+	copy(expectedID[:], h[:8])
+
+	assert.Equal(t, expectedID, keyID)
+}
+
+func TestComputeKeyID_Deterministic(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	// Computing KeyID multiple times should give the same result
+	keyID1 := computeKeyID(pub)
+	keyID2 := computeKeyID(pub)
+
+	assert.Equal(t, keyID1, keyID2)
+}
+
+func TestComputeKeyID_DifferentKeys(t *testing.T) {
+	pub1, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	pub2, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	keyID1 := computeKeyID(pub1)
+	keyID2 := computeKeyID(pub2)
+
+	// Different keys should produce different IDs
+	assert.NotEqual(t, keyID1, keyID2)
+}
+
+func TestParseKeyID_Valid(t *testing.T) {
+	hexStr := "0123456789abcdef"
+
+	keyID, err := ParseKeyID(hexStr)
+	require.NoError(t, err)
+
+	expected := KeyID{0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}
+	assert.Equal(t, expected, keyID)
+}
+
+func TestParseKeyID_InvalidLength(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+	}{
+		{"too short", "01234567"},
+		{"too long", "0123456789abcdef00"},
+		{"empty", ""},
+		{"odd length", "0123456789abcde"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := ParseKeyID(tt.input)
+			assert.Error(t, err)
+			assert.Contains(t, err.Error(), "invalid KeyID length")
+		})
+	}
+}
+
+func TestParseKeyID_InvalidHex(t *testing.T) {
+	invalidHex := "0123456789abcxyz" // 'xyz' are not valid hex
+
+	_, err := ParseKeyID(invalidHex)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "failed to decode KeyID")
+}
+
+func TestKeyID_String(t *testing.T) {
+	keyID := KeyID{0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}
+
+	str := keyID.String()
+	assert.Equal(t, "0123456789abcdef", str)
+}
+
+func TestKeyID_RoundTrip(t *testing.T) {
+	original := "fedcba9876543210"
+
+	keyID, err := ParseKeyID(original)
+	require.NoError(t, err)
+
+	result := keyID.String()
+	assert.Equal(t, original, result)
+}
+
+func TestKeyID_ZeroValue(t *testing.T) {
+	keyID := KeyID{}
+	str := keyID.String()
+	assert.Equal(t, "0000000000000000", str)
+}
+
+// Test KeyMetadata
+
+func TestKeyMetadata_JSONMarshaling(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	metadata := KeyMetadata{
+		ID:        computeKeyID(pub),
+		CreatedAt: time.Date(2024, 1, 15, 10, 30, 0, 0, time.UTC),
+		ExpiresAt: time.Date(2025, 1, 15, 10, 30, 0, 0, time.UTC),
+	}
+
+	jsonData, err := json.Marshal(metadata)
+	require.NoError(t, err)
+
+	var decoded KeyMetadata
+	err = json.Unmarshal(jsonData, &decoded)
+	require.NoError(t, err)
+
+	assert.Equal(t, metadata.ID, decoded.ID)
+	assert.Equal(t, metadata.CreatedAt.Unix(), decoded.CreatedAt.Unix())
+	assert.Equal(t, metadata.ExpiresAt.Unix(), decoded.ExpiresAt.Unix())
+}
+
+func TestKeyMetadata_NoExpiration(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	metadata := KeyMetadata{
+		ID:        computeKeyID(pub),
+		CreatedAt: time.Date(2024, 1, 15, 10, 30, 0, 0, time.UTC),
+		ExpiresAt: time.Time{}, // Zero value = no expiration
+	}
+
+	jsonData, err := json.Marshal(metadata)
+	require.NoError(t, err)
+
+	var decoded KeyMetadata
+	err = json.Unmarshal(jsonData, &decoded)
+	require.NoError(t, err)
+
+	assert.True(t, decoded.ExpiresAt.IsZero())
+}
+
+// Test PublicKey
+
+func TestPublicKey_JSONMarshaling(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	pubKey := PublicKey{
+		Key: pub,
+		Metadata: KeyMetadata{
+			ID:        computeKeyID(pub),
+			CreatedAt: time.Now().UTC(),
+			ExpiresAt: time.Now().Add(365 * 24 * time.Hour).UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(pubKey)
+	require.NoError(t, err)
+
+	var decoded PublicKey
+	err = json.Unmarshal(jsonData, &decoded)
+	require.NoError(t, err)
+
+	assert.Equal(t, pubKey.Key, decoded.Key)
+	assert.Equal(t, pubKey.Metadata.ID, decoded.Metadata.ID)
+}
+
+// Test parsePublicKey
+
+func TestParsePublicKey_Valid(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	metadata := KeyMetadata{
+		ID:        computeKeyID(pub),
+		CreatedAt: time.Now().UTC(),
+		ExpiresAt: time.Now().Add(365 * 24 * time.Hour).UTC(),
+	}
+
+	pubKey := PublicKey{
+		Key:      pub,
+		Metadata: metadata,
+	}
+
+	// Marshal to JSON
+	jsonData, err := json.Marshal(pubKey)
+	require.NoError(t, err)
+
+	// Encode to PEM
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  tagRootPublic,
+		Bytes: jsonData,
+	})
+
+	// Parse it back
+	parsed, rest, err := parsePublicKey(pemData, tagRootPublic)
+	require.NoError(t, err)
+	assert.Empty(t, rest)
+	assert.Equal(t, pub, parsed.Key)
+	assert.Equal(t, metadata.ID, parsed.Metadata.ID)
+}
+
+func TestParsePublicKey_InvalidPEM(t *testing.T) {
+	invalidPEM := []byte("not a PEM")
+
+	_, _, err := parsePublicKey(invalidPEM, tagRootPublic)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "failed to decode PEM")
+}
+
+func TestParsePublicKey_WrongType(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	pubKey := PublicKey{
+		Key: pub,
+		Metadata: KeyMetadata{
+			ID:        computeKeyID(pub),
+			CreatedAt: time.Now().UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(pubKey)
+	require.NoError(t, err)
+
+	// Encode with wrong type
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  "WRONG TYPE",
+		Bytes: jsonData,
+	})
+
+	_, _, err = parsePublicKey(pemData, tagRootPublic)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "PEM type")
+}
+
+func TestParsePublicKey_InvalidJSON(t *testing.T) {
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  tagRootPublic,
+		Bytes: []byte("invalid json"),
+	})
+
+	_, _, err := parsePublicKey(pemData, tagRootPublic)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "failed to unmarshal")
+}
+
+func TestParsePublicKey_InvalidKeySize(t *testing.T) {
+	// Create a public key with wrong size
+	pubKey := PublicKey{
+		Key: []byte{0x01, 0x02, 0x03}, // Too short
+		Metadata: KeyMetadata{
+			ID:        KeyID{},
+			CreatedAt: time.Now().UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(pubKey)
+	require.NoError(t, err)
+
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  tagRootPublic,
+		Bytes: jsonData,
+	})
+
+	_, _, err = parsePublicKey(pemData, tagRootPublic)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "incorrect Ed25519 public key size")
+}
+
+func TestParsePublicKey_IDRecomputation(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	// Create a public key with WRONG ID
+	wrongID := KeyID{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}
+	pubKey := PublicKey{
+		Key: pub,
+		Metadata: KeyMetadata{
+			ID:        wrongID,
+			CreatedAt: time.Now().UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(pubKey)
+	require.NoError(t, err)
+
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  tagRootPublic,
+		Bytes: jsonData,
+	})
+
+	// Parse should recompute the correct ID
+	parsed, _, err := parsePublicKey(pemData, tagRootPublic)
+	require.NoError(t, err)
+
+	correctID := computeKeyID(pub)
+	assert.Equal(t, correctID, parsed.Metadata.ID)
+	assert.NotEqual(t, wrongID, parsed.Metadata.ID)
+}
+
+// Test parsePublicKeyBundle
+
+func TestParsePublicKeyBundle_Single(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	pubKey := PublicKey{
+		Key: pub,
+		Metadata: KeyMetadata{
+			ID:        computeKeyID(pub),
+			CreatedAt: time.Now().UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(pubKey)
+	require.NoError(t, err)
+
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  tagRootPublic,
+		Bytes: jsonData,
+	})
+
+	keys, err := parsePublicKeyBundle(pemData, tagRootPublic)
+	require.NoError(t, err)
+	assert.Len(t, keys, 1)
+	assert.Equal(t, pub, keys[0].Key)
+}
+
+func TestParsePublicKeyBundle_Multiple(t *testing.T) {
+	var bundle []byte
+
+	// Create 3 keys
+	for i := 0; i < 3; i++ {
+		pub, _, err := ed25519.GenerateKey(rand.Reader)
+		require.NoError(t, err)
+
+		pubKey := PublicKey{
+			Key: pub,
+			Metadata: KeyMetadata{
+				ID:        computeKeyID(pub),
+				CreatedAt: time.Now().UTC(),
+			},
+		}
+
+		jsonData, err := json.Marshal(pubKey)
+		require.NoError(t, err)
+
+		pemData := pem.EncodeToMemory(&pem.Block{
+			Type:  tagRootPublic,
+			Bytes: jsonData,
+		})
+
+		bundle = append(bundle, pemData...)
+	}
+
+	keys, err := parsePublicKeyBundle(bundle, tagRootPublic)
+	require.NoError(t, err)
+	assert.Len(t, keys, 3)
+}
+
+func TestParsePublicKeyBundle_Empty(t *testing.T) {
+	_, err := parsePublicKeyBundle([]byte{}, tagRootPublic)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "no keys found")
+}
+
+func TestParsePublicKeyBundle_Invalid(t *testing.T) {
+	_, err := parsePublicKeyBundle([]byte("invalid data"), tagRootPublic)
+	assert.Error(t, err)
+}
+
+// Test PrivateKey
+
+func TestPrivateKey_JSONMarshaling(t *testing.T) {
+	pub, priv, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	privKey := PrivateKey{
+		Key: priv,
+		Metadata: KeyMetadata{
+			ID:        computeKeyID(pub),
+			CreatedAt: time.Now().UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(privKey)
+	require.NoError(t, err)
+
+	var decoded PrivateKey
+	err = json.Unmarshal(jsonData, &decoded)
+	require.NoError(t, err)
+
+	assert.Equal(t, privKey.Key, decoded.Key)
+	assert.Equal(t, privKey.Metadata.ID, decoded.Metadata.ID)
+}
+
+// Test parsePrivateKey
+
+func TestParsePrivateKey_Valid(t *testing.T) {
+	pub, priv, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	privKey := PrivateKey{
+		Key: priv,
+		Metadata: KeyMetadata{
+			ID:        computeKeyID(pub),
+			CreatedAt: time.Now().UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(privKey)
+	require.NoError(t, err)
+
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  tagRootPrivate,
+		Bytes: jsonData,
+	})
+
+	parsed, err := parsePrivateKey(pemData, tagRootPrivate)
+	require.NoError(t, err)
+	assert.Equal(t, priv, parsed.Key)
+}
+
+func TestParsePrivateKey_InvalidPEM(t *testing.T) {
+	_, err := parsePrivateKey([]byte("not a PEM"), tagRootPrivate)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "failed to decode PEM")
+}
+
+func TestParsePrivateKey_TrailingData(t *testing.T) {
+	pub, priv, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	privKey := PrivateKey{
+		Key: priv,
+		Metadata: KeyMetadata{
+			ID:        computeKeyID(pub),
+			CreatedAt: time.Now().UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(privKey)
+	require.NoError(t, err)
+
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  tagRootPrivate,
+		Bytes: jsonData,
+	})
+
+	// Add trailing data
+	pemData = append(pemData, []byte("extra data")...)
+
+	_, err = parsePrivateKey(pemData, tagRootPrivate)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "trailing PEM data")
+}
+
+func TestParsePrivateKey_WrongType(t *testing.T) {
+	pub, priv, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	privKey := PrivateKey{
+		Key: priv,
+		Metadata: KeyMetadata{
+			ID:        computeKeyID(pub),
+			CreatedAt: time.Now().UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(privKey)
+	require.NoError(t, err)
+
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  "WRONG TYPE",
+		Bytes: jsonData,
+	})
+
+	_, err = parsePrivateKey(pemData, tagRootPrivate)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "PEM type")
+}
+
+func TestParsePrivateKey_InvalidKeySize(t *testing.T) {
+	privKey := PrivateKey{
+		Key: []byte{0x01, 0x02, 0x03}, // Too short
+		Metadata: KeyMetadata{
+			ID:        KeyID{},
+			CreatedAt: time.Now().UTC(),
+		},
+	}
+
+	jsonData, err := json.Marshal(privKey)
+	require.NoError(t, err)
+
+	pemData := pem.EncodeToMemory(&pem.Block{
+		Type:  tagRootPrivate,
+		Bytes: jsonData,
+	})
+
+	_, err = parsePrivateKey(pemData, tagRootPrivate)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "incorrect Ed25519 private key size")
+}
+
+// Test verifyAny
+
+func TestVerifyAny_ValidSignature(t *testing.T) {
+	pub, priv, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	message := []byte("test message")
+	signature := ed25519.Sign(priv, message)
+
+	rootKeys := []PublicKey{
+		{
+			Key: pub,
+			Metadata: KeyMetadata{
+				ID:        computeKeyID(pub),
+				CreatedAt: time.Now().UTC(),
+			},
+		},
+	}
+
+	result := verifyAny(rootKeys, message, signature)
+	assert.True(t, result)
+}
+
+func TestVerifyAny_InvalidSignature(t *testing.T) {
+	pub, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	message := []byte("test message")
+	invalidSignature := make([]byte, ed25519.SignatureSize)
+
+	rootKeys := []PublicKey{
+		{
+			Key: pub,
+			Metadata: KeyMetadata{
+				ID:        computeKeyID(pub),
+				CreatedAt: time.Now().UTC(),
+			},
+		},
+	}
+
+	result := verifyAny(rootKeys, message, invalidSignature)
+	assert.False(t, result)
+}
+
+func TestVerifyAny_MultipleKeys(t *testing.T) {
+	// Create 3 key pairs
+	pub1, priv1, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	pub2, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	pub3, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	message := []byte("test message")
+	signature := ed25519.Sign(priv1, message)
+
+	rootKeys := []PublicKey{
+		{Key: pub2, Metadata: KeyMetadata{ID: computeKeyID(pub2)}},
+		{Key: pub1, Metadata: KeyMetadata{ID: computeKeyID(pub1)}}, // Correct key in middle
+		{Key: pub3, Metadata: KeyMetadata{ID: computeKeyID(pub3)}},
+	}
+
+	result := verifyAny(rootKeys, message, signature)
+	assert.True(t, result)
+}
+
+func TestVerifyAny_NoMatchingKey(t *testing.T) {
+	_, priv1, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	pub2, _, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	message := []byte("test message")
+	signature := ed25519.Sign(priv1, message)
+
+	// Only include pub2, not pub1
+	rootKeys := []PublicKey{
+		{Key: pub2, Metadata: KeyMetadata{ID: computeKeyID(pub2)}},
+	}
+
+	result := verifyAny(rootKeys, message, signature)
+	assert.False(t, result)
+}
+
+func TestVerifyAny_EmptyKeys(t *testing.T) {
+	message := []byte("test message")
+	signature := make([]byte, ed25519.SignatureSize)
+
+	result := verifyAny([]PublicKey{}, message, signature)
+	assert.False(t, result)
+}
+
+func TestVerifyAny_TamperedMessage(t *testing.T) {
+	pub, priv, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+
+	message := []byte("test message")
+	signature := ed25519.Sign(priv, message)
+
+	rootKeys := []PublicKey{
+		{Key: pub, Metadata: KeyMetadata{ID: computeKeyID(pub)}},
+	}
+
+	// Verify with different message
+	tamperedMessage := []byte("different message")
+	result := verifyAny(rootKeys, tamperedMessage, signature)
+	assert.False(t, result)
+}