@samitouri / QOS-React / commits / aef8b1b562

19.2 changelog (#34655)

Co-authored-by: Jack Pope <jackpope1@gmail.com> Co-authored-by: Rick Hanlon <rickhanlonii@meta.com>

Sebastian "Sebbie" Silbermann committed Oct 1, 2025 at 22:11 UTC aef8b1b562ed7db87ae9552e44168a54af84aaf8
2 files changed +88
CHANGELOG.md
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1 +## 19.2.0 (October 1st, 2025)
2 +
3 +Below is a list of all new features, APIs, and bug fixes.
4 +
5 +Read the [React 19.2 release post](https://react.dev/blog/2025/10/01/react-19-2) for more information.
6 +
7 +### New React Features
8 +
9 +- [`<Activity>`](https://react.dev/reference/react/Activity): A new API to hide and restore the UI and internal state of its children.
10 +- [`useEffectEvent`](https://react.dev/reference/react/useEffectEvent) is a React Hook that lets you extract non-reactive logic into an [Effect Event](https://react.dev/learn/separating-events-from-effects#declaring-an-effect-event).
11 +- [`cacheSignal`](https://react.dev/reference/react/cacheSignal) (for RSCs) lets your know when the `cache()` lifetime is over.
12 +- [React Performance tracks](https://react.dev/reference/developer-tooling/react-performance-tracks) appear on the Performance panel’s timeline in your browser developer tools
13 +
14 +### New React DOM Features
15 +
16 +- Added resume APIs for partial pre-rendering with Web Streams:
17 + - [`resume`](https://react.dev/reference/react-dom/server/resume): to resume a prerender to a stream.
18 + - [`resumeAndPrerender`](https://react.dev/reference/react-dom/static/resumeAndPrerender): to resume a prerender to HTML.
19 +- Added resume APIs for partial pre-rendering with Node Streams:
20 + - [`resumeToPipeableStream`](https://react.dev/reference/react-dom/server/resumeToPipeableStream): to resume a prerender to a stream.
21 + - [`resumeAndPrerenderToNodeStream`](https://react.dev/reference/react-dom/static/resumeAndPrerenderToNodeStream): to resume a prerender to HTML.
22 +- Updated [`prerender`](https://react.dev/reference/react-dom/static/prerender) APIs to return a `postponed` state that can be passed to the `resume` APIs.
23 +
24 +### Notable changes
25 +
26 +- React DOM now batches suspense boundary reveals, matching the behavior of client side rendering. This change is especially noticeable when animating the reveal of Suspense boundaries e.g. with the upcoming `<ViewTransition>` Component. React will batch as much reveals as possible before the first paint while trying to hit popular first-contentful paint metrics.
27 +- Add Node Web Streams (`prerender`, `renderToReadableStream`) to server-side-rendering APIs for Node.js
28 +- Use underscore instead of `:` IDs generated by useId
29 +
30 +### All Changes
31 +
32 +#### React
33 +
34 +- `<Activity />` was developed over many years, starting before `ClassComponent.setState` (@acdlite @sebmarkbage and many others)
35 +- Stringify context as "SomeContext" instead of "SomeContext.Provider" (@kassens [#33507](https://github.com/facebook/react/pull/33507))
36 +- Include stack of cause of React instrumentation errors with `%o` placeholder (@eps1lon [#34198](https://github.com/facebook/react/pull/34198))
37 +- Fix infinite `useDeferredValue` loop in popstate event (@acdlite [#32821](https://github.com/facebook/react/pull/32821))
38 +- Fix a bug when an initial value was passed to `useDeferredValue` (@acdlite [#34376](https://github.com/facebook/react/pull/34376))
39 +- Fix a crash when submitting forms with Client Actions (@sebmarkbage [#33055](https://github.com/facebook/react/pull/33055))
40 +- Hide/unhide the content of dehydrated suspense boundaries if they resuspend (@sebmarkbage [#32900](https://github.com/facebook/react/pull/32900))
41 +- Avoid stack overflow on wide trees during Hot Reload (@sophiebits [#34145](https://github.com/facebook/react/pull/34145))
42 +- Improve Owner and Component stacks in various places (@sebmarkbage, @eps1lon: [#33629](https://github.com/facebook/react/pull/33629), [#33724](https://github.com/facebook/react/pull/33724), [#32735](https://github.com/facebook/react/pull/32735), [#33723](https://github.com/facebook/react/pull/33723))
43 +- Add `cacheSignal` (@sebmarkbage [#33557](https://github.com/facebook/react/pull/33557))
44 +
45 +#### React DOM
46 +
47 +- Block on Suspensey Fonts during reveal of server-side-rendered content (@sebmarkbage [#33342](https://github.com/facebook/react/pull/33342))
48 +- Use underscore instead of `:` for IDs generated by `useId` (@sebmarkbage, @eps1lon: [#32001](https://github.com/facebook/react/pull/32001), [https://github.com/facebook/react/pull/33342](https://github.com/facebook/react/pull/33342)[#33099](https://github.com/facebook/react/pull/33099), [#33422](https://github.com/facebook/react/pull/33422))
49 +- Stop warning when ARIA 1.3 attributes are used (@Abdul-Omira [#34264](https://github.com/facebook/react/pull/34264))
50 +- Allow `nonce` to be used on hoistable styles (@Andarist [#32461](https://github.com/facebook/react/pull/32461))
51 +- Warn for using a React owned node as a Container if it also has text content (@sebmarkbage [#32774](https://github.com/facebook/react/pull/32774))
52 +- s/HTML/text for for error messages if text hydration mismatches (@rickhanlonii [#32763](https://github.com/facebook/react/pull/32763))
53 +- Fix a bug with `React.use` inside `React.lazy`\-ed Component (@hi-ogawa [#33941](https://github.com/facebook/react/pull/33941))
54 +- Enable the `progressiveChunkSize` option for server-side-rendering APIs (@sebmarkbage [#33027](https://github.com/facebook/react/pull/33027))
55 +- Fix a bug with deeply nested Suspense inside Suspense fallback when server-side-rendering (@gnoff [#33467](https://github.com/facebook/react/pull/33467))
56 +- Avoid hanging when suspending after aborting while rendering (@gnoff [#34192](https://github.com/facebook/react/pull/34192))
57 +- Add Node Web Streams to server-side-rendering APIs for Node.js (@sebmarkbage [#33475](https://github.com/facebook/react/pull/33475))
58 +
59 +#### React Server Components
60 +
61 +- Preload `<img>` and `<link>` using hints before they're rendered (@sebmarkbage [#34604](https://github.com/facebook/react/pull/34604))
62 +- Log error if production elements are rendered during development (@eps1lon [#34189](https://github.com/facebook/react/pull/34189))
63 +- Fix a bug when returning a Temporary reference (e.g. a Client Reference) from Server Functions (@sebmarkbage [#34084](https://github.com/facebook/react/pull/34084), @denk0403 [#33761](https://github.com/facebook/react/pull/33761))
64 +- Pass line/column to `filterStackFrame` (@eps1lon [#33707](https://github.com/facebook/react/pull/33707))
65 +- Support Async Modules in Turbopack Server References (@lubieowoce [#34531](https://github.com/facebook/react/pull/34531))
66 +- Add support for .mjs file extension in Webpack (@jennyscript [#33028](https://github.com/facebook/react/pull/33028))
67 +- Fix a wrong missing key warning (@unstubbable [#34350](https://github.com/facebook/react/pull/34350))
68 +- Make console log resolve in predictable order (@sebmarkbage [#33665](https://github.com/facebook/react/pull/33665))
69 +
70 +#### React Reconciler
71 +
72 +- [createContainer](https://github.com/facebook/react/blob/v19.2.0/packages/react-reconciler/src/ReactFiberReconciler.js#L255-L261) and [createHydrationContainer](https://github.com/facebook/react/blob/v19.2.0/packages/react-reconciler/src/ReactFiberReconciler.js#L305-L312) had their parameter order adjusted after `on*` handlers to account for upcoming experimental APIs
73 +
74 ## 19.1.1 (July 28, 2025)
75
76 ### React
packages/eslint-plugin-react-hooks/CHANGELOG.md
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1 +## 6.1.0
2 +
3 +**Note:** Version 6.0.0 was mistakenly released and immediately deprecated and untagged on npm. This is the first official 6.x major release and includes breaking changes.
4 +
5 +- **Breaking:** Require Node.js 18 or newer. ([@michaelfaith](https://github.com/michaelfaith) in [#32458](https://github.com/facebook/react/pull/32458))
6 +- **Breaking:** Flat config is now the default `recommended` preset. Legacy config moved to `recommended-legacy`. ([@michaelfaith](https://github.com/michaelfaith) in [#32457](https://github.com/facebook/react/pull/32457))
7 +- **New Violations:** Disallow calling `use` within try/catch blocks. ([@poteto](https://github.com/poteto) in [#34040](https://github.com/facebook/react/pull/34040))
8 +- **New Violations:** Disallow calling `useEffectEvent` functions in arbitrary closures. ([@jbrown215](https://github.com/jbrown215) in [#33544](https://github.com/facebook/react/pull/33544))
9 +- Handle `React.useEffect` in addition to `useEffect` in rules-of-hooks. ([@Ayc0](https://github.com/Ayc0) in [#34076](https://github.com/facebook/react/pull/34076))
10 +- Added `react-hooks` settings config option that to accept `additionalEffectHooks` that are used across exhaustive-deps and rules-of-hooks rules. ([@jbrown215](https://github.com/jbrown215)) in [#34497](https://github.com/facebook/react/pull/34497)
11 +
12 +## 6.0.0
13 +
14 +Accidentally released. See 6.1.0 for the actual changes.
15 +
16 ## 5.2.0
17
18 - Support flat config ([@michaelfaith](https://github.com/michaelfaith) in [#30774](https://github.com/facebook/react/pull/30774))