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livekit 0.7.53 (2026-07-17)

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@knope-bot knope-bot released this 17 Jul 16:49
livekit/v0.7.53
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Learn about vigilant mode.

Features

  • Add a pre-encoded video publish path: a passthrough video encoder and encoded video frame buffer in webrtc-sys, and EncodedVideoFrame/EncodedVideoCodec/EncodedFrameType publish APIs with a VideoEncoderBackend::PreEncoded backend in libwebrtc. WebRTC rate-control targets and keyframe requests are forwarded to encoded sources, and pre-encoded AV1 and H265 access units are validated on ingest.

Fixes

  • Emit room EOS when the underlying LiveKit room event channel closes after a server-initiated disconnect, and ignore duplicate disconnect events during teardown.
  • Don't log an expected publisher data channel close as unexpected - #1224 (@longcw)

Simplify x-google-start-bitrate logic and update degradation preference defaults

  • Start bitrate: use min(90% of target, 1 Mbps) instead of adaptive network hints
  • Remove slow connection detection and network quality hints on reconnect
  • Default degradation preference by track source:
    • Camera: MaintainFramerate (smoother video)
    • Screenshare: MaintainResolution (clarity for text/UI)
    • Other: Balanced

Contributors

longcw
Assets 2
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