wailsapp/wails v3.0.0-alpha2.105 on GitHub

Wails v3 Alpha Release - v3.0.0-alpha2.105

Add application.System for runtime platform detection from shared code: System.IsMobile() (iOS/Android), System.IsDesktop() (macOS/Windows/Linux), System.IsServer() (the server build tag), and System.IsPlatform(application.PlatformMacOS|PlatformWindows|PlatformLinux|PlatformIOS|PlatformAndroid|PlatformServer) to test a single target directly. It compiles on every target so you can branch without build tags. Matching frontend helpers (System.IsMobile/IsDesktop/IsIOS/IsAndroid/...) are available in @wailsio/runtime
Add a "Using Other Frontend Frameworks" guide showing how to drop your own Vite project into frontend/ (covers Solid, Preact, Lit, SvelteKit, Qwik, Angular, etc.)
The wails3 setup wizard now checks the mobile (iOS/Android) toolchain — Xcode and the iOS Simulator runtime, JDK, Android SDK/NDK and emulator — with one-click install and copyable shell-config fixes where applicable
Generated projects ship a frontend/.npmrc setting a 7-day minimum-release-age to reduce exposure to freshly published (potentially compromised) packages (honoured by pnpm and bun; harmlessly ignored by npm)

Redesign all built-in starter templates with a new neon-mountain hero look (web, iOS and Android)
TypeScript is now the default for starter templates and owns the bare template name. wails3 init (no -t) scaffolds a TypeScript project; -t vanilla, -t react, -t vue and -t svelte are TypeScript, with JavaScript variants at -t vanilla-js, -t react-js, -t vue-js and -t svelte-js. Built-in templates declare their language with typescript: in template.yaml; community templates using the -ts suffix continue to work as a fallback
Redesign the wails3 setup wizard with the neon "digital Wails" theme (frosted-glass vibrancy over a mountain backdrop)

Fix crash on Windows when restoring an app that was minimised long enough for WebView2 to suspend or its render/GPU process to be recycled. The minimise/restore DPI resync (#5544) now only touches the WebView2 controller when the window's DPI actually changed, avoiding fatal COM calls into a suspended controller on the common same-DPI restore (#5605)
Fix repeated native SIGABRT/SIGSEGV crashes (typically inside g_object_unref during the GTK main loop) on long-running Linux apps under frequent asset/media loads. The asset server completed WebKitURISchemeRequests from worker goroutines, calling thread-unsafe WebKit2GTK functions off the GTK main thread; completion (webkit_uri_scheme_request_finish_with_response/finish_error) now runs on the main thread. Completes the partial fix in #5566. Affects both the GTK3 and GTK4/WebKitGTK 6.0 builds (#5631, #5557)
Fix intermittent fatal error: invalid pointer found on stack in setupSignalHandlers on Linux/GTK3. Window IDs passed as signal user_data were held in a Go unsafe.Pointer local, so the garbage collector aborted when it scanned the (non-pointer) value during a stack copy. The ID is now kept integer-typed (uintptr_t) on the Go side, back-porting to the legacy GTK3 path the same fix #4958 applied to the GTK4 path (which switched the C signal functions to uintptr_t to clear -race/checkptr errors) (#5631)

Remove the react-swc, preact, lit, solid, qwik and sveltekit starter templates (and their -ts variants). The supported built-in set is now vanilla, react, vue and svelte — each TypeScript by default, with -js JavaScript variants. Any other framework can still be used by bringing your own frontend or via a custom template

🤖 This is an automated nightly release generated from the latest changes on master.

Installation:

go install github.com/wailsapp/wails/v3/cmd/wails3@v3.0.0-alpha2.105

⚠️ Alpha Warning: This is pre-release software and may contain bugs or incomplete features.