Update dependency react-redux to v7.2.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
react-redux	devDependencies	minor	7.0.3 -> 7.2.0

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Release Notes

reduxjs/react-redux

v7.2.0

Compare Source

This release fixes two bugs, an algorithmic problem with unsubscribing components and a memory leak with connect. It also has optimizations for production bundle size, and adds a couple small improvements to developer readability while debugging.

Changes

Bug Fixes

connect in v7 is implemented using hooks, and the hooks usage captures numerous values from the surrounding scope. We received a PR informing us that the way we were capturing these values would likely result in a copy of the first version of its props being kept alive indefinitely.

This memory leak has been fixed by extracting a custom hook that receives all the necessary values as arguments, so that they're not captured via closure.

We also received a PR letting us know that the unsubscribe logic had a quadratic algorithm in it, as removing a subscriber would use an indexOf(listener) check to remove that callback. If there were a large number of subscribers, that line's runtime would increase rapidly, causing slowdowns.

This algorithm has been replaced with tracking subscribers via a linked list, which drastically improves the runtime of this section of the code even with large numbers of subscribers.

Thanks to @​larrylin28 and @​wurstbonbon for finding these bugs and submitting PRs to fix them!

Bundle Size Improvements

We've made a number of small tweaks to the codebase to improve the ability of bundlers to shake and minimize the final included size in a bundle. The net result is that react-redux@7.2.0 is smaller than 7.1.3, dropping 1.3K min and 0.6K min+gzip. (In fact, it's even smaller than the pre-hooks 7.0.0 when gzipped!)

Thanks to @​Andarist for doing most of the work on this!

Debugging Improvements

The ReactReduxContext instance now has a displayName set, so it should show up in the React DevTools as ReactRedux.Provider.

Also, when an error is caught in useSelector and re-thrown, we now append the original stack trace.

Thanks to @​pieplu and @​r3dm1ke for these!

Changelog

• Fix memory leak issue with UseEffect (@​larrylin28 - #​1506)
• Optimize createListenerCollection (@​wurstbonbon - #​1523)
• Rethrowing original errors thrown in selector functions (@​Andarist - #​1474)
• Remove invariant in favor of doing NODE_ENV checks directly (@​Andarist - #​1472)
• Wrap .propTypes and .displayName assignments with DEV check (@​Andarist - #​1471)
• Add pure annotations to help with DCE (@​timdorr - 5e0c50d)
• Inline this function. (@​timdorr - 58ae5ed)
• Add a displayName on ReactReduxContext (@​pieplu - #​1462)

v7.1.3

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Forgot to remove a console statement before I published 7.1.2. Oops!

Lint your source code before publishing, folks.

Changes

• Remove leftover console statement (@​markerikson - 30101bb)

v7.1.2

Compare Source

This releases fixes a subtle timing bug with connect and useSelector in React Native environments, and adds the ability to pass through non-Redux-store values as a store prop.

Fixed Store Subscriptions in React Native

Our current implementation requires cascading updates down through connected components. This is primarily done during React's "commit phase" via the useLayoutEffect hook. Unfortunately, React warns when useLayoutEffect is called in SSR environments, so we try to feature-detect that and fall back to useEffect just to avoid that warning.

Unfortunately, a tweak to the feature detection conditions during the pre-7.1.0 work caused the check to accidentally fail in React Native environments. This meant that useEffect was actually being used all the time, and this led to occasional timing bugs such as #​1313 and #​1437 . This affected the previous v7.1.x releases.

We've fixed that issue, and added additional test cases to ensure that our code works correctly under React Native.

See #​1444 for more details on the feature detection and the fix.

Passing Through Non-Store Values

connect has always accepted passing a Redux store directly to connected components as a prop named store (with the exception of v6). As a result, the store prop has effectively been treated as a "reserved" prop, in much the same way that key and ref are "reserved" prop names handled by React.

Some users may be using the word "store" to describe their domain data, and have asked to allow variables that aren't a Redux store through the store prop to the component (#​1393). We've finally been able to implement that capability.

Changes

• Pass non-Redux-store values through the store prop (@​markerikson - #​1447)
• Fix RN batching and effect behavior (@​markerikson - #​1444)
• Remove unused latestStoreState field (@​Hypnosphi - #​1426)
• Mark the react renderers as optional peer deps. (@​timdorr - 388d9e4)
• Use the same condition for checking if SSR in useSelector.js as in connectAdvanced.js (@​LeoDanielsson - #​1419)

v7.1.1

Compare Source

This release is sponsored by Deft, providing technical teams to high-growth SaaS companies with the processes they need to scale successfully. Please reach out to see how we can help with your software development, systems architecture, and infrastructure design needs.

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This release includes some new APIs for those that want to use a custom React Context with our Hooks API, a small memory optimization, and has a fix for when the store changes on a Provider with incompatible children.

Changes

• Add create*Hook factory APIs (#​1309 by @​ryaninvents)
• Free resources (free detached nodes from memory) (#​1380 by @​MosheZemah)
• Convert Provider into function component with hooks (#​1377 by @​mpeyper)

P.S. On the sponsorship section above, it's a thing we're trying out to see how it feels and if it causes any problems for your workflows. (Don't worry, no ads are coming to your npm installs!) The idea for future releases is to let those that contributed to that release have the opportunity to sponsor that release. We don't need donations, but we definitely do need PRs! Hopefully, it's a fair way to encourage them. Please let us know if it's a problem in any way.

v7.1.0

Compare Source

Hooks!

After much discussion, we've decided these Hook things are probably going to stick around, so we might as well add some. Many thanks to @​MrWolfZ, @​josepot, @​perrin4869, and @​mpeyper for their contributions and to everyone else that offered feedback, ideas, and critiques as we built them out. Go open source!

Changes

• Add React Hooks (#​1248 by @​MrWolfZ)
• Add deps argument to useSelector (#​1251 by @​MrWolfZ)
• Use react-hooks-testing-library to test hooks (#​1259 by @​mpeyper)
• Remove useRedux (@​markerikson)
• Remove useActions (@​markerikson)
• Remove deps argument (#​1272 by @​josepot)
• Replace shallowEqual with reference equality in useSelector (#​1288 by @​perrin4869)
• Avoid unnecessary selector evaluations (#​1273 by @​josepot)
• Minor Hook testing improvements (#​1294 by @​MrWolfZ)

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[codecov-io]

Codecov Report

Merging #338 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #338   +/-   ##
=======================================
  Coverage   92.54%   92.54%           
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  Files          55       55           
  Lines        1891     1891           
  Branches      343      336    -7     
=======================================
  Hits         1750     1750           
  Misses        136      136           
  Partials        5        5           

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[renovate]

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