v18.3.1
Move createRoot/hydrateRoot to react-dom/client (#23385)
Add deprecation warning for unmountComponentAtNode
Fix import in README
Support document rendering (#24523)
Move unstable_scheduleHydration to ReactDOMHydrationRoot (#22455)
Remove flushControlled from experimental releases (#23384)
createRoot(..., {hydrate:true}) -> hydrateRoot(...) (#21687)
Bump to 18.3.1
Merge /unstable-fizz entry point into /server (#21684)
Convert the rest of react-dom and react-test-renderer to Named Exports (#18145)
[Fizz/Flight] pipeToNodeWritable(..., writable).startWriting() -> renderToPipeableStream(...).pipe(writable) (#22450)
Exclude react-dom/unstable_testing entry point from stable releases (#23258)