v16.9.0
Warn for javascript: URLs in DOM sinks (#15047)
[Fizz] New Server Rendering Infra (#14144)
Fix regression: Errors not emitted in streams (#14314)
Drop the year from Facebook copyright headers and the LICENSE file. (#13593)
Use unique thread ID for each partial render to access Context (#14182)
Add a feature flag to disable legacy context (#16269)
[Flare] Tweaks to Flare system design and API (#16264)
fix typo
Fix typos (#14124)