Releases
v16.3.0
16.3.0 (March 29, 2018)
React
Add a new officially supported context API. (@acdlite in #11818 )
Add a new React.createRef()
API as an ergonomic alternative to callback refs. (@trueadm in #12162 )
Add a new React.forwardRef()
API to let components forward their refs to a child. (@bvaughn in #12346 )
Fix a false positive warning in IE11 when using React.Fragment
. (@XaveScor in #11823 )
Replace React.unstable_AsyncComponent
with React.unstable_AsyncMode
. (@acdlite in #12117 )
Improve the error message when calling setState()
on an unmounted component. (@sophiebits in #12347 )
React DOM
Add a new getDerivedStateFromProps()
lifecycle and UNSAFE_
aliases for the legacy lifecycles. (@bvaughn in #12028 )
Add a new getSnapshotBeforeUpdate()
lifecycle. (@bvaughn in #12404 )
Add a new <React.StrictMode>
wrapper to help prepare apps for async rendering. (@bvaughn in #12083 )
Add support for onLoad
and onError
events on the <link>
tag. (@roderickhsiao in #11825 )
Add support for noModule
boolean attribute on the <script>
tag. (@aweary in #11900 )
Fix minor DOM input bugs in IE and Safari. (@nhunzaker in #11534 )
Correctly detect Ctrl + Enter in onKeyPress
in more browsers. (@nstraub in #10514 )
Fix containing elements getting focused on SSR markup mismatch. (@koba04 in #11737 )
Fix value
and defaultValue
to ignore Symbol values. (@nhunzaker in #11741 )
Fix refs to class components not getting cleaned up when the attribute is removed. (@bvaughn in #12178 )
Fix an IE/Edge issue when rendering inputs into a different window. (@M-ZubairAhmed in #11870 )
Throw with a meaningful message if the component runs after jsdom has been destroyed. (@gaearon in #11677 )
Don't crash if there is a global variable called opera
with a null
value. @alisherdavronov in #11854 )
Don't check for old versions of Opera. (@skiritsis in #11921 )
Deduplicate warning messages about <option selected>
. (@watadarkstar in #11821 )
Deduplicate warning messages about invalid callback. (@yenshih in #11833 )
Deprecate ReactDOM.unstable_createPortal()
in favor of ReactDOM.createPortal()
. (@prometheansacrifice in #11747 )
Don't emit User Timing entries for context types. (@abhaynikam in #12250 )
Improve the error message when context consumer child isn't a function. (@raunofreiberg in #12267 )
Improve the error message when adding a ref to a functional component. (@skiritsis in #11782 )
React DOM Server
Prevent an infinite loop when attempting to render portals with SSR. (@gaearon in #11709 )
Warn if a class doesn't extend React.Component
. (@wyze in #11993 )
Fix an issue with this.state
of different components getting mixed up. (@sophiebits in #12323 )
Provide a better message when component type is undefined. (@HeroProtagonist in #11966 )
React Test Renderer
Fix handling of fragments in toTree()
. (@maciej-ka in #12107 and @gaearon in #12154 )
Shallow renderer should assign state to null
for components that don't set it. (@jwbay in #11965 )
Shallow renderer should filter legacy context according to contextTypes
. (@koba04 in #11922 )
Add an unstable API for testing asynchronous rendering. (@acdlite in #12478 )
React Is (New)
First release of the new package that libraries can use to detect different React node types. (@bvaughn in #12199 )
Add ReactIs.isValidElementType()
to help higher-order components validate their inputs. (@jamesreggio in #12483 )
React Lifecycles Compat (New)
Create Subscription (New)
React Reconciler (Experimental)
Expose react-reconciler/persistent
for building renderers that use persistent data structures. (@gaearon in #12156 )
Pass host context to finalizeInitialChildren()
. (@jquense in #11970 )
Remove useSyncScheduling
from the host config. (@acdlite in #11771 )
React Call Return (Experimental)
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