v16.12.0
[Bugfix] Passive effects triggered by synchronous renders in a multi-root app (#17347)
Split ReactDOM entry point (#17331)
Change legacy-events plugin nativeEventTarget to allow null (#17344)
[Flight] Basic Streaming Suspense Support (#17285)
Rename legacy "events" package to "legacy-events" (#16388)
Warning system refactoring (part 1) (#16799)