- React and browser builds no longer bundle React DOM; added detailed PropTypes null/undefined messages and new warnings for invalid aria attributes and misuse of autofocus
- Development performance improved by freezing children; ReactPerf now shows component timing charts; unstable batchedUpdates now returns the wrapped function’s result
- Fixed several bugs: IE8 text update issues, occasional shallow‑renderer test failures, Simulate.click on disabled inputs now invokes handlers, packaging crash when importing React DOM alongside ReactTestRenderer, and added createNodeMock...
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