PSA: WebRTC M96 Release Notes

[Huib Kleinhout]

WebRTC M96 Release Notes

Branch: WebRTC M96 branch

Summary

WebRTC M96, which will soon start rolling out to Stable, contains 2 new features and over 11 bug fixes, enhancements and stability/performance improvements. We encourage all developers to run versions of Chrome on the Canary, Dev, and Beta channels frequently and quickly report any issues found. Please take a look at this page, for some pointers on how to file a good bug report. The help we have received has been invaluable!

Note that the WebRTC release notes only cover WebRTC specific changes. Follow the Chromium and Chrome releases blog for further updates on important changes in Chrome releases.

We strongly recommend WebRTC developers to fully test their services in Chrome beta to ensure stability for end-users.

The Chrome release schedule can be found here

PSAs

Title	Description
Plan B deprecation	Plan B SDP will become unavailable in M96 stable unless websites have signed up for the time-limited reverse origin trial. See this PSA
dcSCTP	The rollout of the DcSCTP library for the SCTP transport resumes in M96. PSA

Highlights

Support for RFC 2198 redundancy

Audio redundancy for OPUS using RED is now available. See the PSA for details.

Features and Bugfixes

Type	Issue	Description	Component
Bug	http://bugs.webrtc.org/10569	Implement RTCIceCandidatePairStats.packetsSent and packetsReceived	Stats
Feature	http://bugs.webrtc.org/10739	Add support for the abs-capture-time header extension.	Network>RTP
Bug	http://bugs.webrtc.org/12169	setCodecPreferences API selects duplicate video codec payload type
Feature	http://bugs.webrtc.org/12614	dcSCTP	DataChannel
Bug	http://bugs.webrtc.org/13129	dcSCTP may close connection during the RTCPeerConnection's lifetime	DataChannel
Bug	http://bugs.webrtc.org/13152	Pipewire desktop capturer uses unrestricted Pipewire socket	DesktopCapture
Bug	http://bugs.webrtc.org/13171	Failure to add video receive stream if default stream created from non-primary SSRC	Video
Bug	http://bugs.webrtc.org/13178	Potential issue with RED fmtp payload type reference	Audio,PeerConnection
Bug	http://bugs.webrtc.org/13183	Encountered raw pointer to webrtc::RtpTransceiverInterface, fails RTC_DCHECK_RUN_ON assert	Network>RTP,PeerConnection
Bug	http://bugs.webrtc.org/13192	xdg-desktop-portal 1.10.0 breaks pipewire desktop sharing support	DesktopCapture
Bug	http://bugs.webrtc.org/13217	Some DCSCTP callbacks not invoked when expected	DataChannel
Bug	http://bugs.webrtc.org/13239	Improve efficiency of PipeWire capturer	undefined