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Flow 0.280 introduced stricter type checking for `incompatible-type` errors, requiring additional $FlowFixMe suppressions alongside existing ones. Changes: - Made `QueuingStrategy` properties optional in streams.js - Made all properties optional in Web Animations API types (EffectTiming, KeyframeAnimationOptions, etc.) - Added `$FlowFixMe[incompatible-type]` alongside existing suppressions in multiple files where Flow now reports additional type mismatches
React Concurrent Mode Profiler
This package contains the new/experimental "timeline" for React 18. This profiler exists as its own project because it was initially deployed as a standalone app. It has since been moved into the DevTools Profiler under the "Scheduling" tab. This package will likely eventually be moved into react-devtools-shared.