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Upgrading react 0.3 to 0.5

Breaking0.3.5 → 0.5.2Breaking4Security1New11Changed4Fixed8Other1

Full comparisonBack to react
BreakingUpgrade verdict

4 breaking changes and a security fix.

In plain terms
  • The deprecated autoBind helper is gone.
  • The function for unmounting a component at a DOM node has a new name.
  • If your JSX uses class instead of className, your components will be visually broken until you rename it.
  • Props are now always turned into strings before being set on DOM elements, which removes extra type checking and some confusing cases.
Must act Top 4 of 5 that need code or config changes

What you must change

Breaking4
Removes React.autoBind, which was deprecated in v0.4.
React.autoBind
0.5.0GitHub ReleaseSummarizedView source
Renames React.unmountAndReleaseReactRootNode to React.unmountComponentAtNode.
React.unmountAndReleaseReactRootNodeReact.unmountComponentAtNode
0.5.0GitHub ReleaseSummarizedView source
JSX no longer transforms class to className; using class requires changing it to className.
classclassName
0.5.0GitHub ReleaseSummarizedView source
Standardizes prop to DOM attribute conversion, always converting values to strings before inserting into the DOM.
0.5.0GitHub ReleaseSummarizedView source
Security1
Fixes a potential XSS vulnerability when using user content as a key.
keyModerate · CVSS 6.5
0.5.2CHANGELOG.mdSummarizedView source