KoalaSync Changelog

All notable changes to the KoalaSync browser extension and relay server.

[v2.0.1] — 2026-06-01

Video detection on Prime Video: findVideo() now scores all video elements by size, duration, and mute state instead of picking the first one. Fixes 0×0 placeholder being selected over the actual player.
History entries in debug report showing ? instead of action names.
Prime Video status in compatibility matrix updated to reflect partial support.

Multi-video overview table in Copy Debug Report when a page has more than one <video> element. Shows resolution, mute state, playback state, readyState, duration, and marks the currently targeted video.

6-Language UI: The browser extension is now fully translated into English, German, French, Spanish, Portuguese (Brazilian), and Russian. Switch languages instantly in Settings without reload.
Real-Time i18n: Every label, button, tooltip, toast notification, empty state, and onboarding guide updates dynamically when the language changes.

Copy Debug Report (Markdown): The Copy Logs button in the Status tab now copies a fully formatted Markdown debug report — system info, connection status, video diagnostics, action history, and logs. One click, paste into a GitHub issue, all debugging data ready.
Platform Auto-Detection: The Dev tab now identifies streaming platforms (YouTube, Netflix, Twitch, Prime Video, Disney+, HBO Max, Vimeo, Dailymotion) and displays the detected platform.
Enhanced Video Debug Info: 20+ new fields in the Status tab including network state, buffered ranges, dimensions (with 0×0 warning), media error codes, shadow DOM status, seeking/ended/loop flags, volume, playback speed, and data attributes.
No-Video Diagnostic Mode: When no video is found, the Status tab shows platform, page title, video count, shadow DOM presence, and MediaSession data to help troubleshoot.

New TwoPointZero Branding: Updated extension icons (16/32/48/96/128px).
Larger Popup Logo: Extension popup icon increased to 48px.
Prime Video Unblocked: Removed amazon. from the tab blacklist so Amazon/Prime Video tabs appear in the video selector.
Improved Debug Report: Full User-Agent string for accurate browser identification, UTC timestamp, connection details including server URL and room info.
Smart Disconnect: Improved disconnect handling when leaving rooms.
Human-Readable Room IDs: Expanded word lists for friendlier room names.
Custom Server Support: WEB_JOIN_REQUEST and join button for custom server invite flows.
Reconnection Strategy: Custom server reconnection improvements.
Episode-Aware Sync: Command sequencing with smarter episode transition detection and echo suppression for smoother series binges.
Sync Status Refinements: YouTube and Twitch sync behavior improved.
No External Dependencies: Extension remains dependency-free with no library overhead.

Hardcoded strings, missing translation keys, and Service Worker notification race conditions.

MAJOR (x.0.0): Breaking protocol changes, architecture rewrites, or major feature milestones.
MINOR (0.x.0): New features, significant enhancements, new translations, or UI redesigns.
PATCH (0.0.x): Bug fixes, minor improvements, and documentation updates. PATCH releases may not receive individual changelog entries if bundled with a MINOR release.