Summary:
Pull Request resolved: https://github.com/react/react-native/pull/57611
Directly follows D112733139 (Metro).
**Motivation**
- New Node builtins are *only* available under the prefix (e.g. `node:sqlite`), as this allows Node to introduce them without ecosystem-breaking changes, so this is the direction of travel and the only choice that'll allow consistency.
- Encouraging them and grouping them separately makes it easier to reason about a module's 3rd party dependencies.
Changelog: [Internal]
Reviewed By: robhogan
Differential Revision: D112803684
fbshipit-source-id: 40668d746a7151b3aa4800ff8af997902a18d198
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56922
Move `react-native/core-cli-utils` from `packages/` to `private/`, stop publishing it to npm, and reframe it as a reference implementation of React Native CLI tooling.
The package has no known external consumers and is only used internally by `private/helloworld/` and `packages/rn-tester/`. Publishing it to npm creates a maintenance surface for a package that serves no external users.
See https://github.com/react-native-community/discussions-and-proposals/pull/1002.
#### Changes
- Move `packages/core-cli-utils/` to `private/core-cli-utils/`.
- Convert all source files to CJS (require/module.exports) with Flow comment syntax (/*:: */), eliminating the runtime Babel dependency.
- Remove from the JS build pipeline (`scripts/build/config.js`).
- Remove the defunct `patchCoreCLIUtilsPackageJSON()` runtime patching from both `helloworld/cli.js` and `rn-tester/cli.js`, and delete both `monorepo.js` files that contained it.
- Add as `devDependency` to `rn-tester` and `helloworld`.
- Skip `"*"` version deps in `_prepareHelloWorld()` so they aren't rewritten to the Verdaccio-published version.
- Remove redundant desktop import ignore entry (`private/**` already covers it).
- Rewrite README as reference implementation documentation.
Changelog:
[General][Breaking] - The `react-native/core-cli-utils` package is no longer published. It remains available in the React Native repo as a reference implementation.
Reviewed By: cortinico
Differential Revision: D105959855
fbshipit-source-id: 42e439a45273bdeca76029eff306cdf2451308e2
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/56772
Upgrades to TypeScript 6.0.3 and updates `typescript-eslint/*` for TS 6.0 compatibility across `react-native` and `metro`.
#### Motivation
TypeScript 6.0 (Mar 2026) will resolve https://github.com/facebook/react-native/issues/53565. Before updating in the React Native CLI template, align in RN and Metro source for consistency.
This is an internal change since:
- This upgrade only applies to TS analysis of these repos' source code.
- Edits to `react-native/typescript-config/tsconfig.json` (which *is* distributed) maintain backwards compatibility.
#### Changes
**react-native**
- Bump `typescript` from `^5.8.3` to `^6.0.3`
- Bump `typescript-eslint/*` from `^8.24.0` to `^8.59.2`
- Replace deprecated `moduleResolution: "node"` with `"node16"` and `target: "es5"` with `"es2015"` in codegen-typescript-test
- Add explicit `types: ["jest", "node"]` where needed (TS 6.0 defaults `types` to `[]`)
- Set `strict: false` in configs that only enable specific strict flags (TS 6.0 defaults `strict` to `true`)
- Update `ModuleResolutionKind.NodeJs` to `Node16` in build config
**metro**
- Bump `typescript` from `5.8.3` to `^6.0.3`
- Bump `typescript-eslint/*` from `^8.36.0` to `^8.59.2`
- No tsconfig changes needed (`tsconfig/node20` preset is already TS 6.0 compatible)
Changelog: [Internal]
Reviewed By: christophpurrer
Differential Revision: D104658690
fbshipit-source-id: 9a2feeb257d5783431941a911b17065fcd0389a5
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55914
Introduce a clear error message if running `yarn build` again after `yarn prepack` (which will have applied the `"publishConfig"` field to each `package.json`, just ahead of publishing to npm). This state should never happen in CI or local dev, but can occur if repeat-running `yarn test-release-local` without `yarn test-release-local-clean`.
Introducing a validation error is preferable over making this idempotent (logic would be complex + fragile) for this rare + out-of-design edge case.
Changelog: [Internal]
Reviewed By: alanleedev
Differential Revision: D95215735
fbshipit-source-id: 5a9be44f0d0ae1f2721eed2b11088466a4ff7f72
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55420
After https://github.com/facebook/react-native/pull/54857 (use of the "publishConfig" field), this check is no longer necessary, since `yarn build` will no longer make changes to any checked in files.
In the (expectedly) rare case that `yarn build --prepack` changes are committed (only intended for CI), Flow will also fail independently.
Changelog: [Internal]
Reviewed By: cipolleschi
Differential Revision: D92397786
fbshipit-source-id: 872cc91b62295cdb6d8c2799cffb8a4cadc4106e
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55415
Add optional flag to JS build setup that includes running the `"prepack"` script step after build — allowing the net behaviour before https://github.com/facebook/react-native/pull/54857 to be conveninently switched to if needed.
This is motivated by fixing our internal CI action for `xplat/js/react-native-github/scripts/debugger-shell/build-binary.js` — which depends on a locally built + package.json-written package state (the latter of which no longer happened for `yarn build` by default).
Changelog: [Internal]
Reviewed By: vzaidman
Differential Revision: D92395174
fbshipit-source-id: 28806b3f3872306f2529d4bb5870acde584caf10
Summary:
### Motivation
Updates the shared JavaScript build setup to use the modern `publishConfig` convention.
This:
- Simplifies the build script.
- Makes the production values for `"exports"` more understandable in place (especially by separating from exports conditions).
- Prevents us from creating a dirty file state when running `yarn build`.
### Changes
- Add `publishConfig` to each `package.json` listing production `"exports"` targets.
- Add `scripts/build/prepack.js` script to action `publishConfig` (now on `npm pack`, `npm publish` exclusively).
- Remove `"exports"` rewriting (and un-rewriting safeguards) from build script.
**Note on `"prepack"`**
Slightly unfortunately, `publishConfig` doesn't work consistently between package managers currently, including npm — so this does not work implicitly (but may in future).
We're instead following `publishConfig` as a convention, and explicitly implementing a full copy (theoretically forking us towards pnpm and Yarn v4's approach).
However, I believe this is:
- Worthwhile, for the motivations above — and in particular being able to understand the final shape of `"exports"` (independent from the dimension of conditional exports, which may come into play later).
- Completely inspectable/maintainable as an explicit implementation (`scripts/build/prepack.js`).
Changelog: [Internal]
Pull Request resolved: https://github.com/facebook/react-native/pull/54857
Test Plan:
### CI
✅ GitHub Actions
### End-to-end release test script
(Note: Rebased on `0.83-stable` when tested)
```
yarn test-release-local -t "RNTestProject" -p "iOS" -c $GITHUB_TOKEN
```
{F1984106139}
✅ Test script runs `npm publish` on packages to a local proxy.
{F1984106146}
✅ Installed packages have `publishConfig` `"exports"` values applied
NOTE: ⬆️ This is **exactly** the same output as before.
{F1984106148}
✅ `/tmp/RNTestProject` runs using built + proxy-published + proxy-installed packages
Reviewed By: cipolleschi
Differential Revision: D88963450
Pulled By: huntie
fbshipit-source-id: f328252cf93a1f1039b79d7f369d1e6e7e5b4b52
Summary:
This replaces `glob@^7.0.0` with `tinyglobby@^0.2.15`. `glob@7` has been deprecated for a while and some versions after had security notices released for them. The plan is to backport this PR to `0.81.x` and onwards.
> [!NOTE]
> This is a stopgap solution until `fs.glob` becomes generally available with the EOL of Node v20
Succeeds:
- https://github.com/facebook/react-native/issues/54669
- https://github.com/facebook/react-native/issues/48875
## Changelog:
[GENERAL] [SECURITY] - Replace `glob@^7.0.0` with `tinyglobby@^0.2.15`
Pull Request resolved: https://github.com/facebook/react-native/pull/54737
Test Plan:
- Ran all modified commands manually and `pod install in `rn-tester`
- NOTE: `ios-prebuild`-related scripts haven't been run manually yet
Reviewed By: robhogan
Differential Revision: D88069145
Pulled By: huntie
fbshipit-source-id: 0c455342a4c6d1d6605fd09fe47b418e5d751491
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/52768
Prettier v3 has an async API. This diff adds in await ahead of the upgrade to prepare for the API change.
Changelog: [Internal]
Reviewed By: pieterv
Differential Revision: D78752354
fbshipit-source-id: c0d27a6c863747b71852e72a22687d1fe1d9f76f
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/52473
Shared utils that were located in the root of `scripts/` are now colocated closer to their dependencies or moved to `scripts/shared/` — simplifying the root directory layout.
Changelog: [Internal]
Reviewed By: robhogan
Differential Revision: D77873875
fbshipit-source-id: e04dba41a1ef811d32793931033fdfa93afad0cd
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51904
Replaces `chalk` with Node's `util.styleText` in `scripts/build/` and `scripts/build-types/`.
Will follow up with replacing across the entire repo at a later point.
Changelog: [Internal]
Reviewed By: robhogan
Differential Revision: D76037191
fbshipit-source-id: c28352853f22d455a709f4b752f566626e6fb3fe
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51840
Bumps the minimum version of Node.js in React Native to the current active LTS release (22.x, upgraded from 18.x which is now out of support).
- CI configurations are reduced from `[22, 20, 18]` to `[24, 22]`.
{F1978909878}
See https://nodejs.org/en/about/previous-releases.
Changelog:
[General][Breaking] - Our new minimum Node version is Node.js 22
Reviewed By: yungsters, cortinico
Differential Revision: D76037015
fbshipit-source-id: b6e4b3ee279a9a93d716a13297420bba73f45250
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51688
Changelog: [Internal]
# Context
See D74904547.
## This diff
Creates the `react-native/debugger-shell` package, containing a basic implementation of an Electron-based shell for React Native DevTools. At this point, there is no direct dependency on the new package from the rest of React Native - it's designed to be used as part of a Meta-internal experimental rollout of the new debugger shell via the `BrowserLauncher` interface in `dev-middleware`.
Reviewed By: huntie
Differential Revision: D74820232
fbshipit-source-id: cb06ea9e2ed8c8822019cad8296cc19e69f9db0b
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51524
Links in error suppressions will point to the announcement post in Flow FYI.
Changelog: [Internal]
drop-conflicts
Reviewed By: marcoww6
Differential Revision: D75188177
fbshipit-source-id: 27ea1fbee848e9371e679cf423e30bc9608edea0
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/50467
Changelog: [Internal]
Adds a transform that is able to divide properies of interaces, types and classes into sections:
- properties
- properties typed as functions
- methods
ands sorts them alphabetically within the groups.
Reviewed By: huntie
Differential Revision: D72381050
fbshipit-source-id: 20781dc44e19e63cbb5706a02e513fc0e9bb2412
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/50448
In preparation for API snapshot generation and README documentation, move into dedicated dir.
Changelog: [Internal]
Reviewed By: iwoplaza
Differential Revision: D72306094
fbshipit-source-id: 3663f9ba9987a59918bae54cfc5a27555b90a9f9
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/50013
The diff incorporates event-target-shim types that will be referenced by generated TS types to make sure that the public API does not change unexpectedly. The generated tsconfig contains path property which tells Typescript to use copied types instead of the downloaded event-target-shims types.
Changelog:
[internal] - Moved event-target-shim types to react-native package.
Reviewed By: huntie
Differential Revision: D71044389
fbshipit-source-id: b2837cc880a2161f7ff716470fd6eb4644d514e2
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/50008
The diff adds extraction of triple-slash directives using regex to match and retrieve following reference.
Changelog:
[internal] - Added support for triple-slash directives in generated .d.ts files
Reviewed By: huntie
Differential Revision: D71113674
fbshipit-source-id: 2207d5b455515c44ba585ffecc063914e0818e58
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49643
## Motivation
Modernising the RN codebase to allow for modern Flow tooling to process it.
## This diff
Aligns `useAnimatedValue.js` with its manual .d.ts types.
Changelog: [Internal]
Reviewed By: huntie
Differential Revision: D70096210
fbshipit-source-id: c3cd517eccf1cb68400772ddde6e5891861c927d
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49685
## Motivation
Modernising the RN codebase to allow for modern Flow tooling to process it.
## This diff
Renames `Animated.js` to `AnimatedExports.js`, and introduces an intermediate file that reexports `* as Animated` as a default. This should have equivalent runtime behavior, but allows for a common interface file: `Animated.js.flow` to reinterpret the module as having single exports. TypeScript treats this as a namespace.
Changelog: [Internal]
Reviewed By: huntie
Differential Revision: D70237239
fbshipit-source-id: f552490cb6bb721c6163272689ec9b6c68386574
Sam Zhou