Simple Launcher v5.3.1 is released. Simple Launcher is an emulator frontend that makes playing retro games a breeze.

Simple Launcher Changelog:
🔧 Bug Fixes
Network & HTTP Improvements
Fixed HTTP Request Timeouts - Added 15-second timeouts to all HTTP requests (bug reports, stats, support requests) to prevent indefinite hangs when network issues occur
Added Operation Cancellation Handling - HTTP requests now handle timeout exceptions gracefully without crashing
Microsoft Store Game Scanning
Fixed JSON Parsing Issues - Added sanitization for JSON control characters that could cause crashes when parsing game data with special characters
Fixed Directory Creation - Ensured destination directories exist before saving extracted icons
Thread Safety & UI Stability
Fixed Thread Safety Issues - Wrapped UI updates in dispatcher invocations in MainWindow to prevent cross-thread access exceptions
Fixed String Comparison Issues - Implemented case-insensitive string comparisons throughout the application for system names, file names, and emulator matching
Memory Management
Fixed Memory Leaks - Added proper image source clearing to prevent BitmapImage reference leaks when clearing game grids
Fixed Async Cleanup - Replaced synchronous cleanup methods with async versions to prevent blocking
Fixed Event Handler Leaks - Properly unsubscribe event handlers when closing windows
✨ Improvements
RetroArch Integration
Enhanced RetroArch Validation - Changed parameter validation from "must start with -L" to "must contain -L" for more flexible core configuration
Localization Updates - Updated RetroArch parameter error messages in all 16 supported languages
Blastem Emulator
Improved Blastem Error Handling - Added comprehensive error handling for Blastem configuration injection with specific exception types (FileNotFound, UnauthorizedAccess, IOException)
Batch File Execution
Better Batch File Error Reporting - Batch file failures now create proper exceptions for better debugging
Async/Await Refactoring
Removed ConfigureAwait(false) - Removed .ConfigureAwait(false) from await calls across the application (LogErrorsService, EasyModeManager, DownloadManager, UpdateChecker, SystemManager, ContextMenuFunctions, App)
Proper Dispatcher Invokes - Added proper dispatcher invocations for UI updates in async methods
Security
Path Traversal Prevention - Added validation to ensure resolved paths stay within intended base folders
📦 Tools & Dependencies
Updated BatchConvertToRVZ and RomValidator binaries
📚 Documentation
Fixed Tsugaru emulator platform documentation (PC-9800 series → FM Towns)
🏗️ Technical Improvements
Code Quality
Enhanced exception handling throughout async operations
Improved null checks and defensive programming
Better logging for debugging purposes
Added proper disposal of resources (mutex, cancellation tokens)
Performance
Thread-safe loading state management with locks
Atomic operations for cancellation token source replacement
Optimized file deletion with async retry logic

Download: Simple Launcher v5.3.1
Source: Here