WebRTC M89 Release Notes
WebRTC 4389 branch (cut at r7acc2d9fe3a6e3c4d8881d2bdfc9b8968a724cd5)
WebRTC M89, currently available in Chrome's beta channel, contains over 39 bug fixes, enhancements and stability/performance improvements. As with previous releases, 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!
The Chrome release schedule can be found here.
WebRTC's Plan B SDP semantics will be deprecated and removed
WebRTC 1.0 is now a W3C Recommendation (press release) with the standard SDP format, Unified Plan, being supported by all major browsers. This year it is time to deprecate and remove the non-standard Chromium SDP format, Plan B (intent thread). Timeline:
M89 (Stable in February, 2021): Deprecation warning is added in the developer console.
M93 (Stable in August, 2021): Plan B is removed, with the option to extend this deadline by opting-in to a Reverse Origin Trial.
M96 (Stable in January, 2022): The extended deadline ends and Plan B is removed for everybody.
In M88 and M89 performance improvements significantly reduce the CPU usage and invocation time of WebRTC negotiation methods which greatly benefits Unified Plan usage.
Usage of rtp payload types in the range [35-65] in webrtc.org/chrome
The range 96-127 of dynamic RTP payload types is exhausted. This requires special considerations for interoperability with older versions of Chrome. Read the PSA for details
a=extmap-allow-mixed will be offered by default
The SDP attribute extmap-allow-mixed has been supported since Chrome M71. However, the SDP negotiation in Chrome versions before M71 will fail if extmap-allow-mixed is offered. From Chrome M89
extmap-allow-mixed will be offered by default . PSA
You received this message because you are subscribed to the Google Groups "discuss-webrtc" group.
To unsubscribe from this group and stop receiving emails from it, send an email to discuss-webrt...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/discuss-webrtc/5075a952-a62d-4c36-b138-c192a6d98742n%40googlegroups.com.