fix: clean dist/ before release build

Makefile

@@ -1,17 +1,23 @@
 .PHONY: dev build clean install frontend
 
+# Get version from git tag
+VERSION := $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
+GIT_COMMIT := $(shell git rev-parse --short HEAD 2>/dev/null || echo "unknown")
+BUILD_TIME := $(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
+LDFLAGS := -X 'daily-timer/internal/version.Version=$(VERSION)' -X 'daily-timer/internal/version.GitCommit=$(GIT_COMMIT)' -X 'daily-timer/internal/version.BuildTime=$(BUILD_TIME)'
+
 # Development (fixed ports: Vite 5173, Wails DevServer 34115)
 dev:
 	wails dev -devserver localhost:34115
 
 # Build for macOS
-build:
+build: lint
-	wails build -clean
+	wails build -clean -ldflags "$(LDFLAGS)"
 	@xattr -cr "build/bin/Daily Timer.app" 2>/dev/null || true
 
 # Build for macOS (universal binary)
-build-universal:
+build-universal: lint
-	wails build -clean -platform darwin/universal
+	wails build -clean -platform darwin/universal -ldflags "$(LDFLAGS)"
 	@xattr -cr "build/bin/Daily Timer.app" 2>/dev/null || true
 
 # Install frontend dependencies
@@ -51,21 +57,18 @@ deps:
 init: deps frontend
 	@echo "Project initialized. Run 'make dev' to start development."
 
-# Get version from git tag
-VERSION := $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
-
 # Release - build and package
-release:
+release: lint
 	@echo "Building release $(VERSION)..."
-	wails build -clean
+	wails build -clean -ldflags "$(LDFLAGS)"
 	@xattr -cr "build/bin/Daily Timer.app" 2>/dev/null || true
-	@mkdir -p dist
+	@rm -rf dist && mkdir -p dist
 	cd build/bin && zip -r "../../dist/Daily-Timer-$(VERSION)-macos-arm64.zip" "Daily Timer.app"
 	@echo "Release package: dist/Daily-Timer-$(VERSION)-macos-arm64.zip"
 	@ls -lh dist/*.zip
 
 # Release for both architectures
-release-all:
+release-all: lint
 	@echo "Building release $(VERSION) for all platforms..."
 	@mkdir -p dist
 	GOOS=darwin GOARCH=arm64 wails build -clean -o daily-timer-arm64

frontend/src/components/Settings.svelte

@@ -1,7 +1,7 @@
 <script>
   import { onMount, createEventDispatcher } from 'svelte'
-  import { GetSettings, UpdateSettings, GetMeeting, UpdateMeeting } from '../../wailsjs/go/app/App'
+  import { GetSettings, UpdateSettings, GetMeeting, UpdateMeeting, GetVersion, CheckForUpdates, DownloadAndInstallUpdate, RestartApp } from '../../wailsjs/go/app/App'
-  import { WindowSetSize, ScreenGetAll } from '../../wailsjs/runtime/runtime'
+  import { WindowSetSize, ScreenGetAll, EventsOn, EventsOff } from '../../wailsjs/runtime/runtime'
   import { t, locale, setLocale } from '../lib/i18n'
 
   const dispatch = createEventDispatcher()
@@ -16,6 +16,15 @@
   let windowFullHeight = true
   let audioContext = null
 
+  // Update state
+  let currentVersion = 'dev'
+  let updateInfo = null
+  let checkingUpdate = false
+  let downloadingUpdate = false
+  let downloadProgress = 0
+  let updateError = null
+  let updateComplete = false
+
   function getAudioContext() {
     if (!audioContext) {
       audioContext = new (window.AudioContext || window.webkitAudioContext)()
@@ -67,8 +76,63 @@
 
   onMount(async () => {
     await loadData()
+    
+    // Load version and check for updates
+    try {
+      currentVersion = await GetVersion()
+      checkForUpdates()
+    } catch (e) {
+      console.error('Failed to get version:', e)
+    }
+
+    // Listen for update progress events
+    EventsOn('update:progress', (progress) => {
+      downloadProgress = progress
+    })
+    EventsOn('update:complete', () => {
+      downloadingUpdate = false
+      updateComplete = true
+    })
+
+    return () => {
+      EventsOff('update:progress')
+      EventsOff('update:complete')
+    }
   })
 
+  async function checkForUpdates() {
+    checkingUpdate = true
+    updateError = null
+    updateInfo = null
+    
+    try {
+      updateInfo = await CheckForUpdates()
+    } catch (e) {
+      console.error('Failed to check for updates:', e)
+      updateError = e.message || 'Unknown error'
+    } finally {
+      checkingUpdate = false
+    }
+  }
+
+  async function downloadAndInstall() {
+    downloadingUpdate = true
+    downloadProgress = 0
+    updateError = null
+    
+    try {
+      await DownloadAndInstallUpdate()
+    } catch (e) {
+      console.error('Failed to download update:', e)
+      updateError = e.message || 'Download failed'
+      downloadingUpdate = false
+    }
+  }
+
+  async function restartApp() {
+    await RestartApp()
+  }
+
   async function loadData() {
     loading = true
     try {
@@ -204,6 +268,66 @@
       </div>
     </section>
 
+    <section class="updates-section">
+      <h2>{$t('updates.title')}</h2>
+      
+      <div class="version-info">
+        <span class="version-label">{$t('updates.currentVersion')}:</span>
+        <span class="version-value">{currentVersion}</span>
+      </div>
+
+      {#if checkingUpdate}
+        <div class="update-status checking">
+          <span class="spinner"></span>
+          {$t('updates.checkingForUpdates')}
+        </div>
+      {:else if updateError}
+        <div class="update-status error">
+          {$t('updates.error')}: {updateError}
+        </div>
+        <button class="update-btn" on:click={checkForUpdates}>
+          {$t('updates.checkNow')}
+        </button>
+      {:else if updateComplete}
+        <div class="update-status success">
+          {$t('updates.restartRequired')}
+        </div>
+        <div class="update-buttons">
+          <button class="update-btn primary" on:click={restartApp}>
+            {$t('updates.restart')}
+          </button>
+          <button class="update-btn" on:click={() => updateComplete = false}>
+            {$t('updates.later')}
+          </button>
+        </div>
+      {:else if downloadingUpdate}
+        <div class="update-status downloading">
+          {$t('updates.downloading')} {Math.round(downloadProgress * 100)}%
+        </div>
+        <div class="progress-bar">
+          <div class="progress-fill" style="width: {downloadProgress * 100}%"></div>
+        </div>
+      {:else if updateInfo?.available}
+        <div class="update-status available">
+          {$t('updates.updateAvailable')}: <strong>{updateInfo.latestVersion}</strong>
+        </div>
+        <button class="update-btn primary" on:click={downloadAndInstall}>
+          {$t('updates.downloadAndInstall')}
+        </button>
+      {:else if updateInfo}
+        <div class="update-status uptodate">
+          ✓ {$t('updates.upToDate')}
+        </div>
+        <button class="update-btn" on:click={checkForUpdates}>
+          {$t('updates.checkNow')}
+        </button>
+      {:else}
+        <button class="update-btn" on:click={checkForUpdates}>
+          {$t('updates.checkNow')}
+        </button>
+      {/if}
+    </section>
+
     <button class="save-btn" on:click={saveSettings} disabled={saving}>
       {saving ? $t('common.loading') : $t('settings.save')}
     </button>
@@ -369,4 +493,126 @@
   .test-btn:active {
     transform: scale(0.97);
   }
+
+  /* Updates section */
+  .updates-section {
+    border: 1px solid #3d4f61;
+  }
+
+  .version-info {
+    display: flex;
+    gap: 8px;
+    margin-bottom: 12px;
+    font-size: 14px;
+  }
+
+  .version-label {
+    color: #9ca3af;
+  }
+
+  .version-value {
+    color: #4a90d9;
+    font-family: monospace;
+  }
+
+  .update-status {
+    padding: 10px;
+    border-radius: 8px;
+    margin-bottom: 12px;
+    font-size: 14px;
+  }
+
+  .update-status.checking {
+    background: #1b2636;
+    color: #9ca3af;
+    display: flex;
+    align-items: center;
+    gap: 8px;
+  }
+
+  .update-status.error {
+    background: #7f1d1d;
+    color: #fca5a5;
+  }
+
+  .update-status.available {
+    background: #164e63;
+    color: #67e8f9;
+  }
+
+  .update-status.uptodate {
+    background: #14532d;
+    color: #86efac;
+  }
+
+  .update-status.downloading {
+    background: #1e3a5f;
+    color: #93c5fd;
+  }
+
+  .update-status.success {
+    background: #14532d;
+    color: #86efac;
+  }
+
+  .spinner {
+    width: 16px;
+    height: 16px;
+    border: 2px solid #4a90d9;
+    border-top-color: transparent;
+    border-radius: 50%;
+    animation: spin 1s linear infinite;
+  }
+
+  @keyframes spin {
+    to { transform: rotate(360deg); }
+  }
+
+  .progress-bar {
+    width: 100%;
+    height: 8px;
+    background: #1b2636;
+    border-radius: 4px;
+    overflow: hidden;
+    margin-bottom: 12px;
+  }
+
+  .progress-fill {
+    height: 100%;
+    background: #4a90d9;
+    transition: width 0.3s ease;
+  }
+
+  .update-buttons {
+    display: flex;
+    gap: 8px;
+  }
+
+  .update-btn {
+    padding: 10px 16px;
+    border: 2px solid #3d4f61;
+    border-radius: 8px;
+    background: #1b2636;
+    color: #9ca3af;
+    font-size: 14px;
+    cursor: pointer;
+    transition: all 0.2s;
+  }
+
+  .update-btn:hover {
+    border-color: #4a90d9;
+    background: #2a3a4e;
+    color: #e0e0e0;
+  }
+
+  .update-btn.primary {
+    background: #4a90d9;
+    border-color: #4a90d9;
+    color: white;
+  }
+
+  .update-btn.primary:hover {
+    background: #3b7dc9;
+    border-color: #3b7dc9;
+  }
 </style>

frontend/src/lib/i18n.js

@@ -108,6 +108,24 @@ export const translations = {
       windowFullHeight: 'Окно на всю высоту экрана',
     },
 
+    // Updates
+    updates: {
+      title: 'Обновления',
+      currentVersion: 'Текущая версия',
+      checkingForUpdates: 'Проверка обновлений...',
+      updateAvailable: 'Доступно обновление',
+      upToDate: 'У вас последняя версия',
+      downloadAndInstall: 'Скачать и установить',
+      downloading: 'Загрузка...',
+      installing: 'Установка...',
+      restartRequired: 'Для завершения обновления требуется перезапуск',
+      restart: 'Перезапустить',
+      later: 'Позже',
+      error: 'Ошибка проверки обновлений',
+      downloadError: 'Ошибка загрузки обновления',
+      checkNow: 'Проверить сейчас',
+    },
+
     // Participant management
     participants: {
       title: 'Управление участниками',
@@ -257,6 +275,24 @@ export const translations = {
       windowFullHeight: 'Full screen height window',
     },
 
+    // Updates
+    updates: {
+      title: 'Updates',
+      currentVersion: 'Current version',
+      checkingForUpdates: 'Checking for updates...',
+      updateAvailable: 'Update available',
+      upToDate: 'You have the latest version',
+      downloadAndInstall: 'Download and install',
+      downloading: 'Downloading...',
+      installing: 'Installing...',
+      restartRequired: 'Restart required to complete the update',
+      restart: 'Restart',
+      later: 'Later',
+      error: 'Error checking for updates',
+      downloadError: 'Error downloading update',
+      checkNow: 'Check now',
+    },
+
     // Participant management
     participants: {
       title: 'Manage Participants',

frontend/wailsjs/go/app/App.d.ts

@@ -1,15 +1,20 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
 import {models} from '../models';
+import {updater} from '../models';
 
 export function AddParticipant(arg1:string,arg2:string,arg3:number):Promise<models.Participant>;
 
+export function CheckForUpdates():Promise<updater.UpdateInfo>;
+
 export function DeleteAllSessions():Promise<void>;
 
 export function DeleteParticipant(arg1:number):Promise<void>;
 
 export function DeleteSession(arg1:number):Promise<void>;
 
+export function DownloadAndInstallUpdate():Promise<void>;
+
 export function ExportCSV(arg1:string,arg2:string):Promise<string>;
 
 export function ExportData(arg1:string,arg2:string):Promise<string>;
@@ -30,6 +35,8 @@ export function GetStatistics(arg1:string,arg2:string):Promise<models.Aggregated
 
 export function GetTimerState():Promise<models.TimerState>;
 
+export function GetVersion():Promise<string>;
+
 export function NextSpeaker():Promise<void>;
 
 export function PauseMeeting():Promise<void>;
@@ -38,6 +45,8 @@ export function RemoveFromQueue(arg1:number):Promise<void>;
 
 export function ReorderParticipants(arg1:Array<number>):Promise<void>;
 
+export function RestartApp():Promise<void>;
+
 export function ResumeMeeting():Promise<void>;
 
 export function SkipSpeaker():Promise<void>;

frontend/wailsjs/go/app/App.js

@@ -6,6 +6,10 @@ export function AddParticipant(arg1, arg2, arg3) {
   return window['go']['app']['App']['AddParticipant'](arg1, arg2, arg3);
 }
 
+export function CheckForUpdates() {
+  return window['go']['app']['App']['CheckForUpdates']();
+}
+
 export function DeleteAllSessions() {
   return window['go']['app']['App']['DeleteAllSessions']();
 }
@@ -18,6 +22,10 @@ export function DeleteSession(arg1) {
   return window['go']['app']['App']['DeleteSession'](arg1);
 }
 
+export function DownloadAndInstallUpdate() {
+  return window['go']['app']['App']['DownloadAndInstallUpdate']();
+}
+
 export function ExportCSV(arg1, arg2) {
   return window['go']['app']['App']['ExportCSV'](arg1, arg2);
 }
@@ -58,6 +66,10 @@ export function GetTimerState() {
   return window['go']['app']['App']['GetTimerState']();
 }
 
+export function GetVersion() {
+  return window['go']['app']['App']['GetVersion']();
+}
+
 export function NextSpeaker() {
   return window['go']['app']['App']['NextSpeaker']();
 }
@@ -74,6 +86,10 @@ export function ReorderParticipants(arg1) {
   return window['go']['app']['App']['ReorderParticipants'](arg1);
 }
 
+export function RestartApp() {
+  return window['go']['app']['App']['RestartApp']();
+}
+
 export function ResumeMeeting() {
   return window['go']['app']['App']['ResumeMeeting']();
 }

frontend/wailsjs/go/models.ts

@@ -432,3 +432,30 @@ export namespace models {
 
 }
 
+export namespace updater {
+	
+	export class UpdateInfo {
+	    available: boolean;
+	    currentVersion: string;
+	    latestVersion: string;
+	    releaseNotes: string;
+	    downloadURL: string;
+	    downloadSize: number;
+	
+	    static createFrom(source: any = {}) {
+	        return new UpdateInfo(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.available = source["available"];
+	        this.currentVersion = source["currentVersion"];
+	        this.latestVersion = source["latestVersion"];
+	        this.releaseNotes = source["releaseNotes"];
+	        this.downloadURL = source["downloadURL"];
+	        this.downloadSize = source["downloadSize"];
+	    }
+	}
+
+}
+

internal/app/app.go

@@ -9,8 +9,10 @@ import (
 	"time"
 
 	"daily-timer/internal/models"
+	"daily-timer/internal/services/updater"
 	"daily-timer/internal/storage"
 	"daily-timer/internal/timer"
+	"daily-timer/internal/version"
 
 	"github.com/wailsapp/wails/v2/pkg/runtime"
 )
@@ -21,12 +23,14 @@ type App struct {
 	timer       *timer.Timer
 	session     *models.MeetingSession
 	currentLogs map[uint]*models.ParticipantLog
+	updater     *updater.Updater
 }
 
 func New(store *storage.Storage) *App {
 	return &App{
 		store:       store,
 		currentLogs: make(map[uint]*models.ParticipantLog),
+		updater:     updater.New(),
 	}
 }
 
@@ -479,3 +483,28 @@ func (a *App) GetSoundsDir() string {
 	_ = os.MkdirAll(soundsDir, 0755)
 	return soundsDir
 }
+
+// Updates
+
+func (a *App) GetVersion() string {
+	return version.Version
+}
+
+func (a *App) CheckForUpdates() (*updater.UpdateInfo, error) {
+	return a.updater.CheckForUpdates()
+}
+
+func (a *App) DownloadAndInstallUpdate() error {
+	err := a.updater.DownloadAndInstall(func(progress float64) {
+		runtime.EventsEmit(a.ctx, "update:progress", progress)
+	})
+	if err != nil {
+		return err
+	}
+	runtime.EventsEmit(a.ctx, "update:complete", true)
+	return nil
+}
+
+func (a *App) RestartApp() error {
+	return a.updater.RestartApp()
+}

internal/services/updater/updater.go

@@ -0,0 +1,338 @@
+package updater
+
+import (
+	"archive/zip"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"daily-timer/internal/version"
+)
+
+const (
+	GiteaAPIURL    = "https://git.movida.biz/api/v1/repos/bell/daily-timer/releases/latest"
+	AppName        = "Daily Timer.app"
+	InstallPath    = "/Applications"
+	DownloadPrefix = "Daily-Timer-"
+)
+
+type Release struct {
+	TagName     string  `json:"tag_name"`
+	Name        string  `json:"name"`
+	Body        string  `json:"body"`
+	PublishedAt string  `json:"published_at"`
+	Assets      []Asset `json:"assets"`
+}
+
+type Asset struct {
+	Name               string `json:"name"`
+	Size               int64  `json:"size"`
+	BrowserDownloadURL string `json:"browser_download_url"`
+}
+
+type UpdateInfo struct {
+	Available      bool   `json:"available"`
+	CurrentVersion string `json:"currentVersion"`
+	LatestVersion  string `json:"latestVersion"`
+	ReleaseNotes   string `json:"releaseNotes"`
+	DownloadURL    string `json:"downloadURL"`
+	DownloadSize   int64  `json:"downloadSize"`
+}
+
+type Updater struct {
+	latestRelease *Release
+	downloadURL   string
+}
+
+func New() *Updater {
+	return &Updater{}
+}
+
+func (u *Updater) CheckForUpdates() (*UpdateInfo, error) {
+	client := &http.Client{Timeout: 10 * time.Second}
+
+	resp, err := client.Get(GiteaAPIURL)
+	if err != nil {
+		return nil, fmt.Errorf("failed to check for updates: %w", err)
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("API returned status %d", resp.StatusCode)
+	}
+
+	var release Release
+	if err := json.NewDecoder(resp.Body).Decode(&release); err != nil {
+		return nil, fmt.Errorf("failed to parse release info: %w", err)
+	}
+
+	u.latestRelease = &release
+
+	// Find macOS arm64 asset
+	var downloadAsset *Asset
+	for i := range release.Assets {
+		if strings.Contains(release.Assets[i].Name, "macos-arm64") && strings.HasSuffix(release.Assets[i].Name, ".zip") {
+			downloadAsset = &release.Assets[i]
+			break
+		}
+	}
+
+	if downloadAsset == nil {
+		return nil, fmt.Errorf("no macOS arm64 asset found")
+	}
+
+	u.downloadURL = downloadAsset.BrowserDownloadURL
+
+	latestVersion := strings.TrimPrefix(release.TagName, "v")
+	currentVersion := strings.TrimPrefix(version.Version, "v")
+
+	info := &UpdateInfo{
+		Available:      isNewerVersion(latestVersion, currentVersion),
+		CurrentVersion: version.Version,
+		LatestVersion:  release.TagName,
+		ReleaseNotes:   release.Body,
+		DownloadURL:    downloadAsset.BrowserDownloadURL,
+		DownloadSize:   downloadAsset.Size,
+	}
+
+	return info, nil
+}
+
+func (u *Updater) DownloadAndInstall(progressCallback func(float64)) error {
+	if u.downloadURL == "" {
+		return fmt.Errorf("no download URL available, run CheckForUpdates first")
+	}
+
+	// Create temp directory
+	tmpDir, err := os.MkdirTemp("", "daily-timer-update-")
+	if err != nil {
+		return fmt.Errorf("failed to create temp directory: %w", err)
+	}
+	defer func() { _ = os.RemoveAll(tmpDir) }()
+
+	zipPath := filepath.Join(tmpDir, "update.zip")
+
+	// Download ZIP
+	if err := u.downloadFile(zipPath, progressCallback); err != nil {
+		return fmt.Errorf("failed to download update: %w", err)
+	}
+
+	// Extract ZIP
+	extractPath := filepath.Join(tmpDir, "extracted")
+	if err := u.extractZip(zipPath, extractPath); err != nil {
+		return fmt.Errorf("failed to extract update: %w", err)
+	}
+
+	// Find .app in extracted folder
+	appPath := filepath.Join(extractPath, AppName)
+	if _, err := os.Stat(appPath); os.IsNotExist(err) {
+		return fmt.Errorf("app not found in update package")
+	}
+
+	// Remove old app from /Applications
+	destPath := filepath.Join(InstallPath, AppName)
+	if _, err := os.Stat(destPath); err == nil {
+		if err := os.RemoveAll(destPath); err != nil {
+			return fmt.Errorf("failed to remove old app: %w", err)
+		}
+	}
+
+	// Copy new app to /Applications
+	if err := u.copyDir(appPath, destPath); err != nil {
+		return fmt.Errorf("failed to install update: %w", err)
+	}
+
+	// Remove quarantine attribute
+	cmd := exec.Command("xattr", "-cr", destPath)
+	if err := cmd.Run(); err != nil {
+		fmt.Printf("Warning: failed to remove quarantine: %v\n", err)
+	}
+
+	return nil
+}
+
+func (u *Updater) RestartApp() error {
+	destPath := filepath.Join(InstallPath, AppName)
+
+	// Launch new app
+	cmd := exec.Command("open", destPath)
+	if err := cmd.Start(); err != nil {
+		return fmt.Errorf("failed to launch updated app: %w", err)
+	}
+
+	// Exit current app
+	os.Exit(0)
+	return nil
+}
+
+func (u *Updater) downloadFile(destPath string, progressCallback func(float64)) error {
+	resp, err := http.Get(u.downloadURL)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	out, err := os.Create(destPath)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = out.Close() }()
+
+	totalSize := resp.ContentLength
+	var downloaded int64 = 0
+
+	buf := make([]byte, 32*1024)
+	for {
+		n, err := resp.Body.Read(buf)
+		if n > 0 {
+			if _, writeErr := out.Write(buf[:n]); writeErr != nil {
+				return writeErr
+			}
+			downloaded += int64(n)
+			if progressCallback != nil && totalSize > 0 {
+				progressCallback(float64(downloaded) / float64(totalSize))
+			}
+		}
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (u *Updater) extractZip(zipPath, destPath string) error {
+	r, err := zip.OpenReader(zipPath)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = r.Close() }()
+
+	if err := os.MkdirAll(destPath, 0755); err != nil {
+		return err
+	}
+
+	for _, f := range r.File {
+		fpath := filepath.Join(destPath, f.Name)
+
+		// Prevent ZipSlip vulnerability
+		if !strings.HasPrefix(fpath, filepath.Clean(destPath)+string(os.PathSeparator)) {
+			return fmt.Errorf("illegal file path: %s", fpath)
+		}
+
+		if f.FileInfo().IsDir() {
+			_ = os.MkdirAll(fpath, f.Mode())
+			continue
+		}
+
+		if err := os.MkdirAll(filepath.Dir(fpath), 0755); err != nil {
+			return err
+		}
+
+		outFile, err := os.OpenFile(fpath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
+		if err != nil {
+			return err
+		}
+
+		rc, err := f.Open()
+		if err != nil {
+			_ = outFile.Close()
+			return err
+		}
+
+		_, err = io.Copy(outFile, rc)
+		_ = outFile.Close()
+		_ = rc.Close()
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (u *Updater) copyDir(src, dst string) error {
+	return filepath.Walk(src, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		relPath, err := filepath.Rel(src, path)
+		if err != nil {
+			return err
+		}
+
+		dstPath := filepath.Join(dst, relPath)
+
+		if info.IsDir() {
+			return os.MkdirAll(dstPath, info.Mode())
+		}
+
+		// Handle symlinks
+		if info.Mode()&os.ModeSymlink != 0 {
+			link, err := os.Readlink(path)
+			if err != nil {
+				return err
+			}
+			return os.Symlink(link, dstPath)
+		}
+
+		srcFile, err := os.Open(path)
+		if err != nil {
+			return err
+		}
+		defer func() { _ = srcFile.Close() }()
+
+		dstFile, err := os.OpenFile(dstPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, info.Mode())
+		if err != nil {
+			return err
+		}
+		defer func() { _ = dstFile.Close() }()
+
+		_, err = io.Copy(dstFile, srcFile)
+		return err
+	})
+}
+
+// isNewerVersion compares semver-like versions (e.g., "0.1.0" vs "0.2.0")
+func isNewerVersion(latest, current string) bool {
+	if current == "dev" || current == "unknown" {
+		return true
+	}
+
+	latest = strings.TrimPrefix(latest, "v")
+	current = strings.TrimPrefix(current, "v")
+
+	// Handle dirty versions (e.g., "0.1.0-dirty" or "0.1.0-3-g1234567")
+	if strings.Contains(current, "-") {
+		parts := strings.Split(current, "-")
+		current = parts[0]
+	}
+
+	latestParts := strings.Split(latest, ".")
+	currentParts := strings.Split(current, ".")
+
+	for i := 0; i < len(latestParts) && i < len(currentParts); i++ {
+		var l, c int
+		_, _ = fmt.Sscanf(latestParts[i], "%d", &l)
+		_, _ = fmt.Sscanf(currentParts[i], "%d", &c)
+
+		if l > c {
+			return true
+		} else if l < c {
+			return false
+		}
+	}
+
+	return len(latestParts) > len(currentParts)
+}

internal/version/version.go

@@ -0,0 +1,10 @@
+package version
+
+// Version is set at build time via ldflags
+var Version = "dev"
+
+// GitCommit is set at build time via ldflags
+var GitCommit = "unknown"
+
+// BuildTime is set at build time via ldflags
+var BuildTime = "unknown"

wails.json

@@ -13,7 +13,7 @@
   "info": {
     "companyName": "Movida.Biz",
     "productName": "Daily Timer",
-    "productVersion": "1.0.0",
+    "productVersion": "0.1.0",
     "comments": "Meeting timer with participant time tracking",
     "copyright": "Copyright © 2026 Movida.Biz"
   }