1.Error Handling & Stability
2. Security Improvements
3. Resource Management
4. Code Structure
5. Performance Optimizations
6. UX Improvements
7. Code Quality

## Bug Fixes
- Fixed memory leak issues during long recording sessions
- Resolved permission handling issues on Firefox
- Fixed video playback issues in the preview player
- Improved cleanup of system resources after recording
- Fixed issues with recording status not updating correctly

# Screen Recorder v1.2 Release Notes

## Core Features
- Screen recording with audio support
- Resolution selection up to 4K (3840x2160)
- WebM format recording
- Recording history with playback
- Dark/Light theme support
- Minimal mode interface
- Countdown timer option

## Technical Improvements
- Removed unnecessary APIs for better performance:
- Removed Intersection Observer API
- Removed Performance API monitoring
- Removed Web Worker implementation
- Optimized IndexedDB implementation for recording history
- Improved window management and positioning
- Better error handling and recovery

## Browser Support
- Firefox 79.0 or later
- Optimized for Firefox's Screen Capture API
- Uses standard WebM encoding

## Storage Features
- Local storage for settings
- IndexedDB for recording history
- Unlimited storage permission for large recordings

## UI/UX Improvements
- Responsive design for different window sizes
- Smooth animations and transitions
- Status indicators for recording state
- Recording timer display
- Improved history panel with recording details
- Clear all recordings option

## Settings & Customization
- Resolution presets:
- 4K (3840x2160)
- 2K (2560x1440)
- Full HD (1920x1080)
- HD (1280x720)
- 480p (854x480)
- 360p (640x360)
- Recording delay options (0, 3, 5, 10 seconds)
- Theme toggle (Dark/Light)
- Minimal mode toggle
- Persistent settings storage

## Performance
- Optimized window creation and management
- Improved memory usage
- Better cleanup of resources
- Faster startup time

## Security
- Standard content security policy
- Safe file handling
- Secure local storage

## Known Limitations
- WebM format only
- Firefox-specific implementation
- Requires screen sharing permission

## File Management
- Automatic file naming with timestamp
- Download with custom filename support
- Temporary storage for interrupted downloads
- History management with delete options