redux v4.0.0 Release Notes

Release Date: 2018-04-17 // over 4 years ago
  • ๐Ÿฑ Redux 4 is here! ๐ŸŽ‰

    If you're a React user, this is going to be a lot like going from 15 to 16. Not a lot of user-facing changes, but some interesting improvements under the hood.

    ๐Ÿ— The major changes (#1342) are around our TypeScript definitions, bundled CommonJS and ES builds, throwing if you subscribe or getState from a reducer, and a bunch of other smaller things. The full changes are listed below.



    • โšก๏ธ Tons of docs updates. Thanks @markerikson and the Redux community for all your PRs!
    • ๐Ÿ‘‰ Make middleware API dispatch pass through all call arguments (#2560 by @Asvarox)
    • ๐Ÿ”จ Refactor applyMiddleware to reduce confusion around createStore args (#2201 by @jimbolla)
    • ๐Ÿ‘‰ Make bindActionCreators transparently pass this (#2641 by @Parakleta)
    • โœ‚ Remove @Private flag on AnyAction type definition (#2510 by @alexmngn)
    • ๐Ÿ›  Fixed quote types inconsistency in a warning message (#2297 by @Andarist)
    • ๐Ÿšš Move ActionTypes to a private export (b62248b by @timdorr)
    • Throw if getState, subscribe, or unsubscribe called while dispatching (including inside a reducer) (#1569 by @mjw56)
    • Warn when dispatching during Middleware setup (#1485 by @timdorr)
    • Mapped type for combineReducers in index.d.ts (#2182 by @mkusher)
    • โœ‚ Remove legacy jsnext entry (#2284 by @TrySound)
    • Revamp TypeScript typing with more type safety (#2563 by @pelotom)
    • ๐Ÿ›  Fix TS definitions test for new Dispatch typing (#2674 by @pelotom)
    • โž• Add DeepPartial type for preloaded state (#2679 by @aikoven)
    • Bundle cjs and es formats (#2358 by @TrySound)
    • REPLACE action for replaceReducers (#2673 by @timdorr)
    • โšก๏ธ Update build to use babel-preset-env (#2696 by @hmillison)
    • โšก๏ธ Optimize dispatch plain object check (#2599 by @timdorr)
    • โšก๏ธ Update TypeScript typings (#2773 by @aikoven)
    • โž• Added prettier formatting (#2676 by @adityavohra7)
    • โž• Add a sideEffects: false flag for Webpack 4 (#2865 by @timdorr)
    • ๐Ÿ›  Fix missed case in "observe" type check (#2919 by @zerobias)