[dependabot]

Bumps react and @types/react. These dependencies needed to be updated together.
Updates react from 18.3.1 to 19.3.1

Release notes

Sourced from react's releases.

19.3.1 (October 14th, 2026)

React Server Components

• Improve transport protocol (#37845 by @​unstubbable and @​eps1lon)

19.3.0 (September 9, 2026)

Below is a list of all new features, APIs, and bug fixes.

Read the React 19.3 release post for more information.

New React Features

• <ViewTransition />: Adds <ViewTransition /> and addTransitionType APIs to power View Transition animations in React (@​sebmarkbage, @​jackpope, @​gaearon: #31975, #31987, #31996, #31999, #32001, #32002, #32028, #32029, #32031, #32034, #32038, #32041, #32050, #32090, #32105, #32254, #32379, #32422, #32462, #32540, #32545, #32585, #32599, #32611, #32612, #32617, #32651, #32653, #32656, #32664, #32699, #32723, #32734, #32751, #32752, #32760, #32761, #32764, #32772, #32790, #32819, #32820, #32822, #32833, #32849, #33094, #33191, #33200, #33206, #33293, #33330, #33331, #33332, #33357, #33362, #33433, #33576, #34374, #34450, #34481, #34500, #34502, #34510, #34511, #34539, #35567, #35564, #35485, #35380, #35063, #35060, #34676, #36917, #35337, #35520)
• Fragment Refs: Add Refs to <Fragment /> to support composable platform behavior (@​jackpope, @​sebmarkbage, @​eps1lon, @​Dhakshin2007, @​chirokas, @​teamleaderleo, @​fallintoplace: #32465, #32613, #32619, #32654, #32660, #32682, #32722, #32813, #32814, #33056, #33058, #33093, #34069, #34103, #34544, #34545, #37062, #37061, #37060, #36047, #36010, #35642, #35641, #35637, #35630, #34935, #37457, #37408, #37326, #37251, #37171, #37169, #37168, #37167, #37166, #37165, #37164, #37163, #37162, #37161, #37160, #37125, #37063)

New React DOM Features

• browser(): a new react-dom API that returns a usable which errors during server rendering and resolves in the browser. use(browser()) inside a <Suspense> boundary marks a subtree as browser-only without reporting a recoverable error (@​gnoff: #37143, #37241)
  • Added an onBrowserBailout option to the react-dom/server APIs to observe when a subtree defers to the browser (@​gnoff #37193)

Notable changes

• Enable Trusted Types API integration (@​rickhanlonii #35816)
• Transitions now render independently instead of being entangled into a single render, so a slow transition no longer holds up unrelated ones (@​acdlite #37290)
• Added a DEV-only warning when a component appears to have been unblocked by calling use() conditionally (@​hoxyq, @​eps1lon: #37104, #37203, #37491)

All Changes

React

• Fast Refresh Fixes
  • Fix Fast Refresh to find and remount edits to components wrapped behind lazy() (@​sophiebits #36965)
  • Fix Fast Refresh so edits to a memo() comparison function take effect (@​sophiebits #36964)
  • Fix Fast Refresh crash when an edit changes the kind of a component's type (@​sophiebits #36963)
  • Unify hot reload type resolution for Fast Refresh (@​sophiebits #36962)
  • Fix Fast Refresh to remount correctly when an edit changes the component kind (@​sophiebits #36950)
  • Double invoke effects in StrictMode after Fast Refresh (@​eps1lon #35962)
• Performance Track Fixes
  • Prevent crash when accessing $$typeof in Performance Tracks (@​eps1lon #35679)
  • Handle non-string function names in Performance Tracks (@​eps1lon #35659)
  • Use minus (-) instead of en dash for removed props in Performance Tracks (@​eps1lon #35649)
  • Handle arrays with bigints in deep objects in Performance Tracks (@​eps1lon #35648)
  • Don't enumerate typed array props in Performance Tracks in DEV (@​UditDewan #36913)
  • Bail out of diffing wide objects and arrays in Performance Tracks (@​eps1lon #34742)
  • Clear potentially large performance measures in DEV (@​hoxyq #34803)
  • Fix missing else branch for renders with no props change in Performance Tracks (@​hoxyq #34837)
• Activity Fixes
  • Fix useSyncExternalStore missing store mutations that happened while an Activity tree was hidden (@​sophiebits #36947)
  • Hide portal contents when an Activity is hidden (@​acdlite #35091)
  • Prevent metadata hoisting in hidden <Activity> trees (@​ronnakamoto #34983)

... (truncated)

Changelog

Sourced from react's changelog.

19.3.0 (September 9, 2026)

New React Features

• <ViewTransition />: Adds <ViewTransition /> and addTransitionType APIs to power View Transition animations in React (@​sebmarkbage, @​jackpope, @​gaearon: #31975, #31987, #31996, #31999, #32001, #32002, #32028, #32029, #32031, #32034, #32038, #32041, #32050, #32090, #32105, #32254, #32379, #32422, #32462, #32540, #32545, #32585, #32599, #32611, #32612, #32617, #32651, #32653, #32656, #32664, #32699, #32723, #32734, #32751, #32752, #32760, #32761, #32764, #32772, #32790, #32819, #32820, #32822, #32833, #32849, #33094, #33191, #33200, #33206, #33293, #33330, #33331, #33332, #33357, #33362, #33433, #33576, #34374, #34450, #34481, #34500, #34502, #34510, #34511, #34539, #35567, #35564, #35485, #35380, #35063, #35060, #34676, #36917, #35337, #35520)
• Fragment Refs: Add Refs to <Fragment /> to support composable platform behavior (@​jackpope, @​sebmarkbage, @​eps1lon, @​Dhakshin2007, @​chirokas, @​teamleaderleo, @​fallintoplace: #32465, #32613, #32619, #32654, #32660, #32682, #32722, #32813, #32814, #33056, #33058, #33093, #34069, #34103, #34544, #34545, #37062, #37061, #37060, #36047, #36010, #35642, #35641, #35637, #35630, #34935, #37457, #37408, #37326, #37251, #37171, #37169, #37168, #37167, #37166, #37165, #37164, #37163, #37162, #37161, #37160, #37125, #37063)

New React DOM Features

• browser(): a new react-dom API that returns a usable which errors during server rendering and resolves in the browser. use(browser()) inside a <Suspense> boundary marks a subtree as browser-only without reporting a recoverable error (@​gnoff: #37143, #37241)
  • Added an onBrowserBailout option to the react-dom/server APIs to observe when a subtree defers to the browser (@​gnoff #37193)

Notable changes

• Enable Trusted Types API integration (@​rickhanlonii #35816)
• Transitions now render independently instead of being entangled into a single render, so a slow transition no longer holds up unrelated ones (@​acdlite #37290)
• Added a DEV-only warning when a component appears to have been unblocked by calling use() conditionally (@​hoxyq, @​eps1lon: #37104, #37203, #37491)

All Changes

React

• Fast Refresh Fixes
  • Fix Fast Refresh to find and remount edits to components wrapped behind lazy() (@​sophiebits #36965)
  • Fix Fast Refresh so edits to a memo() comparison function take effect (@​sophiebits #36964)
  • Fix Fast Refresh crash when an edit changes the kind of a component's type (@​sophiebits #36963)
  • Unify hot reload type resolution for Fast Refresh (@​sophiebits #36962)
  • Fix Fast Refresh to remount correctly when an edit changes the component kind (@​sophiebits #36950)
  • Double invoke effects in StrictMode after Fast Refresh (@​eps1lon #35962)
• Performance Track Fixes
  • Prevent crash when accessing $$typeof in Performance Tracks (@​eps1lon #35679)
  • Handle non-string function names in Performance Tracks (@​eps1lon #35659)
  • Use minus (-) instead of en dash for removed props in Performance Tracks (@​eps1lon #35649)
  • Handle arrays with bigints in deep objects in Performance Tracks (@​eps1lon #35648)
  • Don't enumerate typed array props in Performance Tracks in DEV (@​UditDewan #36913)
  • Bail out of diffing wide objects and arrays in Performance Tracks (@​eps1lon #34742)
  • Clear potentially large performance measures in DEV (@​hoxyq #34803)
  • Fix missing else branch for renders with no props change in Performance Tracks (@​hoxyq #34837)
• Activity Fixes
  • Fix useSyncExternalStore missing store mutations that happened while an Activity tree was hidden (@​sophiebits #36947)
  • Hide portal contents when an Activity is hidden (@​acdlite #35091)
  • Prevent metadata hoisting in hidden <Activity> trees (@​ronnakamoto #34983)
  • Prevent errors thrown inside a hidden Activity from escaping to the visible UI (@​acdlite #35074)
  • Don't unhide a node if a direct parent Offscreen is still hidden (@​sebmarkbage #34821)
  • Don't show internal <Offscreen> component in error messages (@​rickhanlonii #35763)
• Warn in DEV when a component appears to have been unblocked by a conditional use() (@​hoxyq, @​eps1lon: #37104, #37203, #37491)
• Render transitions independently instead of entangling them into a single render (@​acdlite #37290)
• Fix hang when updating a dehydrated boundary inside a hidden tree (@​gaearon #37135)
• Don't reacquire Host Singletons during dev effect validation (@​gnoff #37113)
• Only remove properties from Host Singletons on release (@​gnoff #37112)

... (truncated)

Commits

• 61aa00d [19.3.x][Flight] Improve transport protocol (#37845)
• 2dc7da7 [test] Bump Jest to 30.4 (#37382)
• 4f93894 docs: remove stale parentType param from validateChildKeys JSDoc (#36928)
• dbc3750 Update required references to GitHub repo (#36752)
• 900ae09 [flow] Bump flow to v0.317.0 (#36701)
• fbb1370 [flow] Bump flow to v0.307.1 (#36199)
• 56922cf [react-native-renderer] Delete Paper (legacy) renderer (#36285)
• 74568e8 [Flight] Transport AggregateErrors.errors (#36156)
• e66ef64 [tests] remove withoutStack from assertConsole helpers (#35498)
• db71391 [Fiber] Instrument the lazy initializer thenable in all cases (#35521)
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by GitHub Actions, a new releaser for react since your current version.

Updates @types/react from 18.3.28 to 19.3.0

Commits

• See full diff in compare view

[hansi-codes]

🟡 Tier B · Needs changes before merging

The still-open React DOM/type companion mismatch makes a standard npm ci fail with ERESOLVE, so the dependency update is not mergeable as currently resolved.

This update raises the React runtime and React type declarations to their 19.x releases, with corresponding dependency-lockfile updates. It also refreshes the related resolved packages in the lockfile.

Verdict	New comments	Fixed	Still open
💬 Commented	0	0	1

Fix with agent prompt

### Issue 1
package.json:22
**Keep react-dom and its types aligned with React 19**

This leaves `react-dom` and `@types/react-dom` on 18.x; their peer ranges require React and `@types/react` 18.x, so the dependency tree is incompatible and the CI `npm ci` install can fail. Even if peer checks are bypassed, React 18 DOM is not a supported renderer for React 19; please upgrade both companion packages with React or keep React on 18.

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

📂 Walkthrough · 2

File	Change
package.json	Bumps the React runtime and @types/react manifest ranges.
package-lock.json	Locks the new React/types versions and associated transitive dependency updates.

⏳ Still open from earlier reviews · 1

• 🟠 Keep react-dom and its types aligned with React 19 · package.json:22

---

_{Reviewed 7ac9201 · Details · Comment @hansi-codes review to re-run, or mention @hansi-codes with a question.}

[hansi-codes]

🟡 Tier B · 1 blocking finding to address. Summary

[hansi-codes]

Keep react-dom and its types aligned with React 19

This leaves react-dom and @types/react-dom on 18.x; their peer ranges require React and @types/react 18.x, so the dependency tree is incompatible and the CI npm ci install can fail. Even if peer checks are bypassed, React 18 DOM is not a supported renderer for React 19; please upgrade both companion packages with React or keep React on 18.

Prompt To Fix With AI

This is a comment left during a code review.
Path: package.json
Line: 22

Comment:
**Keep react-dom and its types aligned with React 19**

This leaves `react-dom` and `@types/react-dom` on 18.x; their peer ranges require React and `@types/react` 18.x, so the dependency tree is incompatible and the CI `npm ci` install can fail. Even if peer checks are bypassed, React 18 DOM is not a supported renderer for React 19; please upgrade both companion packages with React or keep React on 18.

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

_{🟠 Major · bug · Reply if this doesn't apply.}