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v0.4.2

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@willwade willwade released this 10 Jul 05:38
v0.4.2
48382e0

What's New in v0.4.0

Major Architecture Changes

  • RustTtsWrapper Integration — complete transition to Rust-based TTS wrapper (RustTtsWrapper.Bindings 0.3.8)
    • Removed legacy DotNetTtsWrapper and EngineConfig components
    • Full x86 and x64 support with native rust_tts_wrapper.dll
    • Improved FFI safety and thread safety in callbacks
    • Better memory management and COM reference counting

Stability & Performance Fixes (Comprehensive Codebase Review)

  • Thread Safety Improvements — fixed race conditions in cache enumeration and FFI callbacks
  • Memory Management — fixed COM reference counting violations and event handler memory leaks
  • Performance Optimization — reduced TTS pipeline logging overhead with conditional level checks
  • MSI Installation Reliability — deferred COM registration for proper rollback and error handling
  • Async Pattern Fixes — replaced async void methods with proper async Task patterns

User Experience Improvements

  • Onboarding Wizard — new 3-page welcome/onboarding flow (welcome, how-to, privacy)
    • Shows on fresh install and version bumps
    • Clear explanations of VoiceGarden's purpose and privacy practices
    • Analytics opt-in with proper consent
  • Application Icon — professional icon for taskbar, title bar, and Start Menu
  • Version-Gated Onboarding — onboarding re-appears on major version updates

Platform Support

  • Full x86 Support — complete 32-bit architecture support with rust_tts_wrapper.dll
  • Dual Architecture Installer — both x86 and x64 versions in single MSI
  • Improved Platform Detection — better handling of WOW6432Node registry hive

Build System & CI/CD

  • Simplified Dependencies — removed 7-Zip dependency, using built-in SharpCompress
  • Enhanced CI Pipeline — all 12 jobs green, including C++ DLL, UI, CLI tools, and MSI
  • Release Automation — MSI, setup.exe, per-platform ZIPs, and debug symbols
  • NuGet Package Management — RustTtsWrapper.Bindings from NuGet.org instead of source builds

Voice Engine Enhancements

  • Model Download Improvements — streaming downloads with progress indication
  • SherpaOnnx Integration — better model type detection and Kokoro model support
  • Azure Voice Preview — fixed format conversion (MP3 to WAV) for audio playback
  • Voice Promotion — improved registry token management and cleanup

Technical Debt Cleanup

  • Code Quality — addressed memory leaks, thread safety issues, and COM interface violations
  • Error Handling — improved exception handling in async operations and COM calls
  • Resource Management — proper IDisposable implementation in ViewModels
  • Logging Optimization — conditional compilation to reduce performance overhead

Breaking Changes

  • Removed Components — DotNetTtsWrapper and EngineConfig no longer supported
  • Minimum Requirements — Windows 10+ required (removed XP compatibility code paths)

Migration Notes

  • Existing Installations — seamless upgrade path with proper COM registration/unregistration
  • Configuration Migration — existing registry settings preserved during upgrade
  • Model Downloads — SherpaOnnx models automatically downloaded on first use
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