What agents should know before contributing

facebook/react

The library for web and native user interfaces.

Read by Bluet from 2 files written for agents and 300 merged pull requests on 2026-09-24. Not reviewed by the maintainers.

Decisions its pull requests settled (29)

#36328Throw special error if rejected Promises are incorrectly instrumented
#36455fix[describeClassComponentFrame]: invoke constructor with new keyword
#36506[rust-compiler] Preserve TS type on SWC cast-wrapper expressions
#36498[rust-compiler] Match TS behavior for TypeScript this parameters
#36584[Fizz] Fix aborts during resumed rendering
#36508[rust-compiler] Treat redeclared functions as one binding in SWC scope info
#36580[Fizz] Finish abort in a scheduled task
#36593[react-devtools-facade] 1/ scaffold package + installFacade building block
#36586[Fizz] Allow Pending Work to Specialize Abort Reasons
#36912[compiler]: add `useWindowVirtualizer` to known incompatible libraries
#36911Treat incomplete tree as an error during recovery
#36873[Flight] Tailor the warning for binary data with a toJSON (Node Buffer)
#36929[react-devtools] substitute %i and %f in console format strings
#36946[compiler] Bail out with Todo on using and await using declarations
#36916[Fizz] Guard the shell-error callbacks instead of nulling them out on the request
#36950[Fast Refresh] Remount correctly when an edit changes the component kind
#37009[DevTools] Don't reconnect proxy port while page is prerendering
#37063[Fiber] Collect Host Singleton children of Fragments
#37135[Fiber] Fix hang when updating a dehydrated boundary inside a hidden tree
#37143Add ReactDOM `browser()` API
#37147[Flight] Outline and dedupe repeated strings
#37232[rust-compiler] Bail out on nested TypeScript `this` parameters
#37241Add lazy reasons to browser()
#37315[Flight/Fizz] Stop the caller's signal from retaining a finished render
#37342[Flight] Abort the cache signal when debug objects are retained
#37355[ci] Compare size against merge base
#37379[test] Stop leaking mocked performance clocks into later test files
#37481[Flight] Fix RangeError from exponential debug info growth
#37608[Flight & DevTools] Strip the whole "async " prefix from V8 stack frame names

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