• ExoPlayer:
  • Add Format.selectionPriority representing the relative preference of the Format in track selection (#3236).
• Track Selection:
  • Fix a timing-dependent concurrency issue where rapid sequential updates to track selection parameters could result in some updates being lost or overwritten.
• Extractors:
  • AVI: Fix an issue where playing files without keyframe flags on audio tracks caused audio loss and OutOfMemoryError.
  • MP3: Use gapless-aware durations from Xing/Info headers (#3183).
  • MP3: Adjust LAME/Xing encoder delay and padding metadata to match decoded PCM trimming (#3200).
• Audio:
  • Remove fallback path of EAC3-JOC to EAC3 for playback on Google Pixel devices as their standard EAC3 decoders cannot decode EAC3-JOC streams (#3257).
• Video:
  • Fix bug in VideoFrameReleaseHelper where display changes could trigger redundant Choreographer callbacks and excessive CPU wakeups on the main thread.
• Session:
  • Fix double-downscaling of artwork in MediaSession when the image size is close to the platform limit, resolving blurriness in notifications (#3134).
  • Fix ForegroundServiceStartNotAllowedException crash in MediaNotificationManager when an asynchronous artwork bitmap load callback attempts to start the foreground service while the app is in the background (#3270).
  • Fix an issue where PositionInfo objects received by a MediaController were missing their original Timeline UIDs. The session now reliably translates and propagates these UIDs during state updates.
• UI:
  • Fix shutter suppression bug in PlayerView and Compose PresentationState that caused crashes on timelines that do not support period UID lookup (#3264).
• HLS extension:
  • Parse SCORE attribute of EXT-X-STREAM-INF and EXT-X-I-FRAME-STREAM-INF, and populate it to Format.selectionPriority (#3236).
  • Fix bug where scheduled HLS playlist refreshes continue even if the playlist is no longer primary or active (#3254).
• DASH extension:
  • Add support for parsing multiple Location elements from the manifest (MPD) and performing location fallback in DashMediaSource when manifest loads fail.
• Decoder extensions (FFmpeg, VP9, AV1, etc.):
  • Add monochrome video support to bundled dav1d JNI.
• Cast extension:
  • Add MediaRouteButtonState and rememberMediaRouteButtonState to support observing the visibility state of the media route picker, and add state parameter to MediaRouteButton (3172).
  • Fix bug where RemoteCastPlayer could get permanently stuck in a track-masking state after a track selection, causing it to ignore subsequent track updates from the Cast receiver (#3237).
  • Fix bug where DefaultMediaItemConverter throws a NullPointerException when trying to join a cast session started from a non-Media3 sender.
  • Prevent CastPlayer from transferring MediaItems that are not playable when changing the active player (#3199).
• Test Utilities:
  • Add setPlaybackLooper to TestExoPlayerBuilder.
• Remove deprecated symbols:
  • Remove androidx.media3.common.C.generateAudioSessionIdV21. Use androidx.media3.common.util.Util.generateAudioSessionId instead.