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CHANGELOG.md

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Change Log

LATER

  • Memory management
  • Selector cache configuration

NEXT

  • (Add new changes here as they land)
  • Performance optimization to suppress re-rendering components:
    • When subscribed selectors evaluate to the same value. (#749, #952)
    • On initial render when not using React Concurrent Mode (#820)
  • Improved TypeScript and Flow typing for Loadables (#966)
  • Added override prop to RecoilRoot
  • Fix for Atom Effects onSet() not being called when triggered from setSelf() initializing a Promise or from the same onSet() handler. (#974, #979, #953, #986)

0.2.0 (2021-3-18)

Major improvements

  • More reliable async selectors
  • Improved performance using HAMT data structures (b7d1cfddec66dae).

Other improvements

  • Changed semantics of waitForAny() such that it will always return loadables unless everything is loading. This better aligns behaviour of waitForAny() and waitForNone()
  • Added a waitForAllSettled helper analogous to Promise.allSettled. (4c95591)
  • Friendly error message for misuse of useRecoilCallback (#870)
  • Friendly error message if you try to use an async function as a selector setter, which is not supported. (#777)
  • Improved React Native support. (#748, #702)
  • Added useGetRecoilValueInfo_UNSTABLE() hook for dev tools. (#713, #714)

Bug fixes

  • Selectors now treat any non-Promise that is thrown as an error, rather than only instances of Error. (f0e66f727)
  • A child of RecoilRoot could sometimes have its state updated after being unmounted. (#917)
  • The error message for missing RecoilRoot wasn't displayed on React experimental releases. (#712)
  • IE 11 compatibility (#894, d27c800d8)
  • Errors shouldn't be frozen (#852)
  • Atom effects could fail to initialize atoms in certain cases (#775).
  • Async selectors would fail with multiple React roots (a618a3).

0.1.3 (2021-3-2)

  • Fixed peer dependencies

0.1.2 (2020-10-30)

  • Fix TypeScript exports

0.1.1 (2020-10-29)

  • Performance Improvements
  • Experimental React Native support
  • Experimental Atom Effects
  • Experimental Snapshot construction

0.0.13 (2020-09-16)

  • Fix for bug affecting SSR

0.0.12 (2020-09-15)

  • Fix for bug affecting SSR on development builds

0.0.11 (2020-09-15)

  • Experimental React Concurrent Mode Support
  • Performance
  • Flow Types
  • ES, CommonJS, and UMD packages
  • Synchronization Across React Roots
  • Preliminary Developer Tools API
  • Test Infrastructure Fixes

0.0.10 (2020-06-18)

Bug Fix

  • Fix exports for snapshot hooks

0.0.9 (2020-06-17)

Features

  • TypeScript support now rolled into Recoil repository and package.
  • Recoil Snapshot API for observing and managing global Recoil state.

Improvements

  • Throw error with meaningful message if user doesn't use an atom or selector with most Recoil hooks (#205) - Thanks @alexandrzavalii
  • Improve testing (#321, #318, #294, #262, #295) - Thanks @aaronabramov, @Komalov, @mondaychen, @drarmstr, and @tyler-mitchell
  • Improve open-source build (#249, #203, #33) - Thanks to @tony-go, @acutmore, and @jaredpalmer

Bug Fixes

  • Some fixes for Server Side Rendering, though we do not officially support it yet. (#233, #220, #284) - Thanks @fyber-LJX, @Chrischuck, and @aulneau
  • Fix selectors recording dependency subscriptions in some cases (#296) - Thanks @drarmstr
  • Fix updaters in useRecoilCallback() getting current state (#260) - Thanks @drarmstr
  • Fix error messages when throwing certain errors in the open-source build. (#199) - Thanks @jonthomp
  • Reduce Flow errors for open-source builds (#308) - Thanks @Komalov

0.0.8 (2020-05-30)

Bug Fixes

  • Build system and repository syncing fixed.
  • Fixed a bug where atoms that stored self-referential structures would cause an infinite loop. (#153)
  • Fixed bugs affecting Server-Side Rendering. (#53)

Features

  • TypeScript support is now available via DefinitelyTyped.
  • atomFamily and selectorFamily: these provide a standard way to create atoms and selectors using memoized functions. Compared with doing this yourself, in the future these will help with memory management.
  • noWait, waitForNone, waitForAny, waitForAll: helpers for concurrency and other advanced logic in async selectors.
  • constSelector and errorSelector: selectors that always evaluate to a constant or always throw an error.
  • readOnlySelector: wraps a read-write atom or selector in a read-only interface, for when you need type covariance.