[dependabot]

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

Release notes

Sourced from react-dom'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-dom'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)
• f4e439e [Fizz] Add nonce to rendered import maps (#37339)
• 21c89c9 [DOM] Clean up Fragment listeners on signal abort (#37457)
• 065bc84 [DOM] Unobserve fragment IntersectionObserver targets after exit (#37408)
• ff7445e [DOM] Update HTML parser rules for new select parser (#34804)
• 2dc7da7 [test] Bump Jest to 30.4 (#37382)
• 29d9d31 [DOM] Copy source onto the synthetic toggle event (#37389)
• 269bd40 [test] Remove the custom toThrow override for legacy V8 error messages (#37...
• a112448 [DOM] Treat omitted Fragment Event listener options same as capture: false ...
• 3d05080 [Fizz] Construct the render lifetime controller only when it is needed (#37357)
• Additional commits viewable in compare view

Maintainer changes

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

Updates @types/react-dom from 18.3.7 to 19.3.0

Commits

• See full diff in compare view

[hansi-codes]

🟡 Tier B · Needs changes before merging

The existing open finding remains: React and its type package are still 18.x while React DOM and its types require 19.x, and a standard npm ci fails with ERESOLVE.

This PR upgrades react-dom to 19.3.1 and @types/react-dom to 19.3.0. The lockfile also updates the associated scheduler dependency and records the new React DOM peer requirements.

Verdict	New comments	Fixed	Still open
💬 Commented	0	0	1

Fix with agent prompt

### Issue 1
package.json:23
**Keep React on the same major as react-dom**

`react` remains on 18.3.1, but `react-dom` 19.3.1 requires the React 19 peer; the new `@types/react-dom` also requires `@types/react` 19. This leaves the renderer and React on incompatible versions, which can break rendering or hydration—please upgrade the React runtime and types together, or keep the DOM packages 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 react-dom and @types/react-dom to major version 19.
package-lock.json	Updates the React DOM packages, scheduler, peer requirements, and related lock entries.

⏳ Still open from earlier reviews · 1

• 🟠 Keep React on the same major as react-dom · package.json:23

---

_{Reviewed a2e18ff · 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 on the same major as react-dom

react remains on 18.3.1, but react-dom 19.3.1 requires the React 19 peer; the new @types/react-dom also requires @types/react 19. This leaves the renderer and React on incompatible versions, which can break rendering or hydration—please upgrade the React runtime and types together, or keep the DOM packages on 18.

Prompt To Fix With AI

This is a comment left during a code review.
Path: package.json
Line: 23

Comment:
**Keep React on the same major as react-dom**

`react` remains on 18.3.1, but `react-dom` 19.3.1 requires the React 19 peer; the new `@types/react-dom` also requires `@types/react` 19. This leaves the renderer and React on incompatible versions, which can break rendering or hydration—please upgrade the React runtime and types together, or keep the DOM packages 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.}