fix(deps): update dependency react-redux to v8 - autoclosed #795
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR contains the following updates:
7.2.9
->8.1.3
Release Notes
reduxjs/react-redux (react-redux)
v8.1.3
Compare Source
v8.1.2
Compare Source
This version changes imports from the React package to namespace imports so the package can safely be imported in React Server Components as long as you don't actually use it - this is for example important if you want to use the React-specifc
createApi
function from Redux Toolkit.Some other changes:
globalThis
(in this case it will fall back to the previous behaviour).Full Changelog: reduxjs/react-redux@v8.1.1...v8.1.2
v8.1.1
Compare Source
This bugfix release tweaks the recent lazy context setup logic to ensure a single React context instance per React version, and removes the recently added RTK peerdep to fix an issue with Yarn workspaces.
Changelog
React Context Singletons
React Context has always relied on reference identity. If you have two different copies of React or a library in a page, that can cause multiple versions of a context instance to be created, leading to problems like the infamous "Could not find react-redux context" error.
In v8.1.0, we reworked the internals to lazily create our single
ReactReduxContext
instance to avoid issues in a React Server Components environment.This release further tweaks that to stash a single context instance per React version found in the page, thus hopefully avoiding the "multiple copies of the same context" error in the future.
What's Changed
44fc725
Full Changelog: reduxjs/react-redux@v8.1.0...v8.1.1
v8.1.0
Compare Source
This feature release adds new development-mode safety checks for common errors (like poorly-written selectors), adds a workaround to fix crash errors when React-Redux hooks are imported into React Server Component files, and updates our hooks API docs page with improved explanations and updated links.
Changelog
Development Mode Checks for
useSelector
We've had a number of users tell us over time that it's common to accidentally write selectors that have bad behavior and cause performance issues. The most common causes of this are either selectors that unconditionally return a new reference (such as
state => state.todos.map()
without any memoization ), or selectors that actually return the entire root state (state => state
).We've updated
useSelector
to add safety checks in development mode that warn if these incorrect behaviors are detected:useSelector
will warn if the results are different referencesuseSelector
will warn if the selector result is actually the entire rootstate
By default, these checks only run once the first time
useSelector
is called. This should provide a good balance between detecting possible issues, and keeping development mode execution performant without adding many unnecessary extra selector calls.If you want, you can configure this behavior globally by passing the enum flags directly to
<Provider>
, or on a per-useSelector
basis by passing an options object as the second argument:This goes along with the similar safety checks we've added to Reselect v5 alpha as well.
Context Changes
We're still trying to work out how to properly use Redux and React Server Components together. One possibility is using RTK Query's
createApi
to define data fetching endpoints, and using the generated thunks to fetch data in RSCs, but it's still an open question.However, users have reported that merely importing any React-Redux API in an RSC file causes a crash, because
React.createContext
is not defined in RSC files. RTKQ's React-specificcreateApi
entry point imports React-Redux, so it's been unusable in RSCs.This release adds a workaround to fix that issue, by using a proxy wrapper around our singleton
ReactReduxContext
instance and lazily creating that instance on demand. In testing, this appears to both continue to work in all unit tests, and fixes the import error in an RSC environment. We'd appreciate further feedback in case this change does cause any issues for anyone!We've also tweaked the internals of the hooks to do checks for correct
<Provider>
usage when using a custom context, same as the default context checks.Docs Updates
We've cleaned up some of the Hooks API reference page, and updated links to the React docs.
What's Changed
Full Changelog: reduxjs/react-redux@v8.0.7...v8.1.0
v8.0.7
Compare Source
This release updates the peer dependencies to accept Redux Toolkit, and accept the ongoing RTK and Redux core betas as valid peer deps.
What's Changed
d45204f
: Fix broken RTK peer depFull Changelog: reduxjs/react-redux@v8.0.5...v8.0.7
v8.0.6
Compare Source
~~This release updates the peer dependencies to accept Redux Toolkit, and accept the ongoing RTK and Redux core betas as valid peer deps.~~
This release has a peer deps typo that breaks installation - please use 8.0.7 instead !
What's Changed
Full Changelog: reduxjs/react-redux@v8.0.5...v8.0.6
v8.0.5
Compare Source
This release fixes a few minor TS issues.
What's Changed
Provider
: pass state (S
) generic through toProviderProps
by @OliverJAsh in https://github.com/reduxjs/react-redux/pull/1960equalityFn
type inNoInfer
by @phryneas in https://github.com/reduxjs/react-redux/pull/1965Full Changelog: reduxjs/react-redux@v8.0.4...v8.0.5
v8.0.4
Compare Source
This patch release fixes some minor TS types issues, and updates the rarely-used
areStatesEqual
option forconnect
to now pass throughownProps
for additional use in determining which pieces of state to compare if desired.Changelog
TS Fixes
We've fixed an import of
React
that caused issues with theallowSyntheticDefaultImports
TS compiler flag in user projects.connect
already accepted a custom context instance asprops.context
, and had runtime checks in case users were passing through a real value with app data asprops.context
instead. However, the TS types did not handle that case, and this would fail to compile. If your own component expectsprops.context
with actual data,connect
's types now use that type instead.The
ConnectedProps<T>
type had a mismatch with React's built-inReact.ComponentProps<Component>
type, and that should now work correctly.Other Changes
The
areStatesEqual
option toconnect
now receivesownProps
as well, in case you need to make a more specific comparison with certain sections of state.The new signature is:
What's Changed
ComponentProps
from older@types/react
by @Andarist in https://github.com/reduxjs/react-redux/pull/1956Full Changelog: reduxjs/react-redux@v8.0.2...v8.0.4
v8.0.3
Compare Source
This release was accidentally published without an intended fix - please use v8.0.4 instead
v8.0.2
Compare Source
This patch release tweaks the behavior of
connect
to print a one-time warning when the obsoletepure
option is passed in, rather than throwing an error. This fixes crashes caused by libraries such asreact-beautiful-dnd
continuing to pass in that option (unnecessarily) to React-Redux v8.What's Changed
Full Changelog: reduxjs/react-redux@v8.0.1...v8.0.2
v8.0.1
Compare Source
This release fixes an incorrect internal import of our
Subscription
type, which was causing TS compilation errors in some user projects. We've also listed@types/react-dom
as an optional peerDep. There are no runtime changes in this release.What's Changed
Subscription
causesnoImplicitAny
error by @vicrep in https://github.com/reduxjs/react-redux/pull/1910Full Changelog: reduxjs/react-redux@v8.0.0...v8.0.1
v8.0.0
Compare Source
This major version release updates
useSelector
,connect
, and<Provider>
for compatibility with React 18, rewrites the React-Redux codebase to TypeScript (obsoleting use of@types/react-redux
), modernizes build output, and removes the deprecatedconnectAdvanced
API and thepure
option forconnect
.Overview, Compatibility, and Migration
Our public API is still the same (
<Provider>
,connect
anduseSelector/useDispatch
), but we've updated the internals to use the newuseSyncExternalStore
hook from React. React-Redux v8 is still compatible with all versions of React that have hooks (16.8+, 17.x, and 18.x; React Native 0.59+), and should just work out of the box.In most cases, it's very likely that the only change you will need to make is bumping the package version to
"react-redux": "^8.0"
.If you are using the rarely-used
connectAdvanced
API, you will need to rewrite your code to avoid that, likely by using the hooks API instead. Similarly, thepure
option forconnect
has been removed.If you are using Typescript, React-Redux is now written in TS and includes its own types. You should remove any dependencies on
@types/react-redux
.While not directly tied to React-Redux, note that the recently updated
@types/react@18
major version has changed component definitions to remove havingchildren
as a prop by default. This causes errors if you have multiple copies of@types/react
in your project. To fix this, tell your package manager to resolve@types/react
to a single version. Details:React issue #24304: React 18 types broken since release
Additionally, please see the React post on How to Ugprade to React 18 for details on how to migrate existing apps to correctly use React 18 and take advantage of its new features.
Changelog
React 18 Compatibility
React-Redux now requires the new
useSyncExternalStore
API in React 18. By default, it uses the "shim" package which backfills that API in earlier React versions, so React-Redux v8 is compatible with all React versions that have hooks (16.8+, and React Native 0.59+) as its acceptable peer dependencies.We'd especially like to thank the React team for their extensive support and cooperation during the
useSyncExternalStore
development effort. They specifically designeduseSyncExternalStore
to support the needs and use cases of React-Redux, and we used React-Redux v8 as a testbed for howuseSyncExternalStore
would behave and what it needed to cover. This in turn helped ensure thatuseSyncExternalStore
would be useful and work correctly for other libraries in the ecosystem as well.Our performance benchmarks show parity with React-Redux v7.2.5 for both
connect
anduseSelector
, so we do not anticipate any meaningful performance regressions.useSyncExternalStore
and BundlingThe
useSyncExternalStore
shim is imported directly in the main entry point, so it's always included in bundles even if you're using React 18. This adds roughly 600 bytes minified to your bundle size.If you are using React 18 and would like to avoid that extra bundle cost, React-Redux now has a new
/next
entry point. This exports the exact same APIs, but directly importsuseSyncExternalStore
from React itself, and thus avoids including the shim. You can alias"react-redux": "react-redux/next"
in your bundler to use that instead.SSR and Hydration
React 18 introduces a new
hydrateRoot
method for hydrating the UI on the client in Server-Side Rendering usage. As part of that, theuseSyncExternalStore
API requires that we pass in an alternate state value other than what's in the actual Redux store, and that alternate value will be used for the entire initial hydration render to ensure the initial rehydrated UI is an exact match for what was rendered on the server. After the hydration render is complete, React will then apply any additional changes from the store state in a follow-up render.React-Redux v8 supports this by adding a new
serverState
prop for<Provider>
. If you're using SSR, you should pass your serialized state to<Provider>
to ensure there are no hydration mismatch errors:TypeScript Migration and Support
The React-Redux library source has always been written in plain JS, and the community maintained the TS typings separately as
@types/react-redux
.We've (finally!) migrated the React-Redux codebase to TypeScript, using the existing typings as a starting point. This means that the
@types/react-redux
package is no longer needed, and you should remove that as a dependency.We've tried to maintain the same external type signatures as much as possible. If you do see any compile problems, please file issues with any apparent TS-related problems so we can review them.
The TS migration was a great collaborative effort, with many community members contributing migrated files. Thank you to everyone who helped out!
In addition to the "pre-typed"
TypedUseSelectorHook
, there's now also aConnect<State = unknown>
type that can be used as a "pre-typed" version ofconnect
as well.As part of the process, we also updated the repo to use Yarn 3, copied the typetests files from DefinitelyTyped and expanded them, and improved our CI setup to test against multiple TS versions.
Removal of the
DefaultRootState
typeThe
@types/react-redux
package, which has always been maintained by the community, included aDefaultRootState
interface that was intended for use with TS's "module augmentation" capability. Bothconnect
anduseSelector
used this as a fallback if no state generic was provided. When we migrated React-Redux to TS, we copied over all of the types from that package as a starting point.However, the Redux team specifically considers use of a globally augmented state type to be an anti-pattern. Instead, we direct users to extract the
RootState
andAppDispatch
types from the store setup, and create pre-typed versions of the React-Redux hooks for use in the app.Now that React-Redux itself is written in TS, we've opted to remove the
DefaultRootState
type entirely. State generics now default tounknown
instead.Technically the module augmentation approach can still be done in userland, but we discourage this practice.
Modernized Build Output
We've always targeted ES5 syntax in our published build artifacts as the lowest common denominator. Even the "ES module" artifacts with
import/export
keywords still were compiled to ES5 syntax otherwise.With IE11 now effectively dead and many sites no longer supporting it, we've updated our build tooling to target a more modern syntax equivalent to ES2017, which shrinks the bundle size slightly.
If you still need to support ES5-only environments, please compile your own dependencies as needed for your target environment.
Removal of Legacy APIs
We announced in 2019 that the legacy
connectAdvanced
API would be removed in the next major version, as it was rarely used, added internal complexity, and was also basically irrelevant with the introduction of hooks. As promised, we've removed that API.We've also removed the
pure
option forconnect
, which forced components to re-render regardless of whether props/state had actually changed if it was set tofalse
. This option was needed in some cases in the early days of the React ecosystem, when components sometimes relied on external mutable data sources that could change outside of rendering. Today, no one writes components that way, the option was barely used, and React 18'suseSyncExternalStore
strictly requires immutable updates. So, we've removed thepure
flag.Given that both of these options were almost never used, this shouldn't meaningfully affect anyone.
Changes
Due to the TS migration effort and number of contributors, this list covers just the major changes:
pure
removal by @Andarist in https://github.com/reduxjs/react-redux/pull/1859useSyncExternalStore
shim behavior and update React deps by @markerikson in https://github.com/reduxjs/react-redux/pull/1884DefaultRootState
type by @markerikson in https://github.com/reduxjs/react-redux/pull/1887serverState
behavior by @markerikson in https://github.com/reduxjs/react-redux/pull/1888peerDependencies
by @kyletsang in https://github.com/reduxjs/react-redux/pull/1893dispatchProp
arg inmergeProps
by @markerikson in https://github.com/reduxjs/react-redux/pull/1897Configuration
📅 Schedule: Branch creation - "before 4am on Monday" in timezone America/New_York, Automerge - At any time (no schedule defined).
🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
This PR has been generated by Mend Renovate. View repository job log here.