livekit/CHANGELOG

# Changelog

This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [1.2.2] - 2022-09-13
### Added
- Supervisor framework to improve edge case & error handling #1005 #1006 #1010 #1017
- Support for stereo Opus tracks #1013
- Allow CORS responses to be cached to allow faster initial connection #1027

### Fixed
- Fixed SSRC mix-up for simulcasted tracks during session resume #1014
- Fixed screen corruption for non-simulcasted tracks, caused by probing packets #1020
- Fixed Handling of Simple NALU keyframes for H.264 #1016
- Fixed TCPMux & UDPMux mixup when multiple host candidates are offered #1036

### Changed
- Webhook requests are now using Content-Type application/webhook+json to avoid eager JSON parsing #1025
- Don't automatically add STUN servers when explicit Node IP has been set #1023
- Automatic TCP and TURN/TLS fallback is now enabled by default #1033

### Removed
- Fully removed references to VP9. LiveKit is focused on AV1. #1004

## [1.2.1] - 2022-09-13
### Added
- Accepts existing participant ID on reconnection attempts #988

### Fixed
- Fixed ICE restart during candidate gathering #963
- Ensure TrackInfoAvailable is fired after information is known to be ready #967
- Fixed layer handling when publisher pauses layer 0 (FireFox is has a tendency to pause lowest layer) #984
- Fixed inaccurate participant count due to storing stale data #992

### Changed
- Protect against looking up dimensions for invalid spatial layer #977
- Improvements around migration handling #979 #981 #982 #995
- Consistent mapping between VideoQuality, rid, and video layers #986
- Only enable TCP/TURN fallback for supported clients #997

## [1.2.0] - 2022-08-25
### Added
- Support for NACK with audio tracks (#829)
- Allow binding HTTP server to specific address, binds to localhost in dev mode(#831)
- Packet stats from TC (#832)
- Automatic connectivity fallback to TCP & TURN (#872 #873 #874 #901 #950)
- Support for client-side ping/pong messages (#871)
- Support for setCodecPreferences for clients that don't implement it (#916)
- Opus/RED support: redundant audio transmission is enabled by default (#938 #940)

### Fixed
- Fixed timing issue in DownTrack.Bind/Close (#833)
- Fixed TCPMux potentially blocking operations (#840)
- Fixed ICE restart while still in ICE gathering (#895)
- Fixed Websocket connection hanging if node isn't available to accept connection (#923)
- Fixed ICE restart/resume in single node mode (#930)
- Fixed client disconnected in certain conditions after ICE restart (#932)

### Changed
- Move to synchronously handle subscriber dynacast status (#834)
- Retransmit DD extension in case packets were missed (#837)
- Clean up stats workers (#836)
- Use TimedVersion for subscription permission updates (#839)
- Cleaned up logging (#843 #865 #910 #921)
- track_published event now includes the participant's ID and identity (#846)
- Improve synchronization of track publishing/unpublish path (#857)
- Don't re-use transceiver when pending negotiation (#862)
- Dynacast and media loss proxy refactor (#894 #902)
- PCTransport refactor (#907 #944)
- Improve accuracy of connection quality score (#912 #913)
- Docker image now builds with Go v1.19


## [1.1.2] - 2022-07-11
### Added
- Returns reason when server disconnects a client (#801 #806)
- Allow livekit-server to start without keys configuration (#788)
- Added recovery from negotiation failures (#807)

### Fixed
- Fixed synchronization issues with Dynacast (#779 #802)
- Fixed panic due to timing in Pion's ICE agent (#780)
- ICELite is disabled by default, improving connectivity behind NAT (#784)
- Fixed EgressService UpdateLayout (#782)
- Fixed synchronization bugs with selective subscriptions & permissions (#796 #797 #805 #813 #814 #816)
- Correctly recover from ICE Restart during an negotiation attempt (#798)

### Changed
- Improved Transceiver re-use to avoid renegotiation (#785)
- Close room if recorder is the only participant left (#787)
- Improved connection quality score stability & computation (#793 #795)
- Set layer state to stopped when paused (#818)

### Removed
- Removed deprecated RecordingService - Egress should be used instead (#811)

## [1.1.0] - 2022-06-21
### Added
- Add support for Redis Sentinel (#707)
- Track participant join total + rate in node stats (#741)
- Protocol 8 - fast connection support (#747)
- Simulate switch candidate for network connectivity with poor UDP performance (#754)
- Allow server to disable codec for certain devices (#755)
- Support for on-demand multi-codec publishing (#762)

### Fixed
- Fixed unclean DownTrack close when removed before bound. (#736)
- Do not munge VP8 header in place - fixes video corruption (#763)

### Changed
- Reintroduce audio-level quantization to dampen small changes (#732)
- Allow overshooting maximum when there are no bandwidth constraints. (#739)
- Improvements to upcoming multi-codec simulcast (#740)
- Send layer dimensions when max subscribed layers change (#746)
- Use stable TrackID after unpublishing & republishing (#751)
- Update egress RPC handler (#759)
- Improved connection quality metrics (#766 #767 #770 #771 #773 #774 #775)

## [1.0.2] - 2022-05-27
### Changed
- Fixed edge cases where streams were not allocated (#701)
- Fixed panic caused by concurrent modifications to stats worker map (#702 #704)
- Batched subscriber updates to reduce noise in large rooms (#703 #729)
- Fixed potential data race conditions (#706 #709 #711 #713 #715 #716 #717 #724 #727
- /debug/pprof endpoint when running in development mode (#708)
- When audio tracks are muted, send blank frames to induce silence (#710)
- Fixed stream allocator not upgrading streams after downgrading (#719)
- Fixed repeated AddSubscriber potentially ignored (#723)
- Fixed ListEgress API sometimes returning not found (#722)

## [1.0.1] - 2022-05-19
### Changed
- Update Egress details when changed, fixed Egress APIs (#694)

## [1.0.0] - 2022-05-17
### Added
- Improved stats around NACKs (#664)
- Internal structures in preparation for AV1 SVC support (#669)
### Changed
- Supports participant identity in permissions API (#633)
- Fixed concurrent access of stats worker map (#666 #670)
- Do not count padding packets in stream tracker (#667)
- Fixed TWCC panic under heavy packet loss (#668)
- Change state to JOINED before sending JoinResponse (#674)
- Improved frequency of stats update (#673)
- Send active speaker update during initial subscription (#676)
- Updated DTLS library to incorporate security fixes (#678)
- Improved list-nodes command (#681)
- Improved screen-share handling in StreamTracker (#683)
- Inject slience opus packets when muted (#682)