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26 lines
851 B
26 lines
851 B
12 years ago
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---
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title: "React v0.4.1"
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layout: post
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author: Paul O'Shannessy
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---
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React v0.4.1 is a small update, mostly containing correctness fixes. Some code has been restructured internally but those changes do not impact any of our public APIs.
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## React
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* `setState` callbacks are now executed in the scope of your component.
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* `click` events now work on Mobile Safari.
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* Prevent a potential error in event handling if `Object.prototype` is extended.
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* Don't set DOM attributes to the string `"undefined"` on update when previously defined.
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* Improved support for `<iframe>` attributes.
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* Added checksums to detect and correct cases where server-side rendering markup mismatches what React expects client-side.
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## JSXTransformer
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* Improved environment detection so it can be run in a non-browser environment.
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[Download it now!](/react/downloads.html)
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