Traceary

Catalog / React

React 18 to 19

Every React 19.x release the archive holds, 28 of them, starting at 19.0.0 and running to 19.2.8. The publisher writes these one at a time and its documentation describes the version you are on, so the run between two majors is not laid out anywhere as a list.

Releases
2828 carry notes
Opened
5 Dec 20241.7 years ago
Span
20 monthsto 21 Jul 2026
Breaking
2tagged by the publisher
Advisories closed
8security

The turn

The last 18.x release the archive holds before the turn is 18.3.1, on 26 Apr 2024. 19.0.0 followed 223 days later. The archive holds no 18.x release after 19.0.0 opened.

Tagged breaking

2 of these releases carry the breaking label: 19.2.0, 19.0.0. The label is matched from words in the publisher’s own notes, so a release that changed an API without using the word does not carry it.

Every 19.x release

All React releases
19.2.8

React Server Components Performance improvements when decoding (#37087 by @eps1lon)

19.1.9

React Server Components Performance improvements when decoding (#37088 by @eps1lon)

19.0.8

React Server Components Performance improvements when decoding (#37089 by @eps1lon)

19.2.7fixed

React Server Components Fixed missing FormData entries in Server Actions which regressed in 19.2.6 (#36566 by @unstubbable)

19.1.8fixed

React Server Components Fixed missing FormData entries in Server Actions which regressed in 19.1.7 (#36567 by @unstubbable)

19.0.7fixed

React Server Components Fixed missing FormData entries in Server Actions which regressed in 19.0.6 (#36568 by @unstubbable)

19.2.6

React Server Components Type hardening and performance improvements (#36425 by @eps1lon and @unstubbable)

19.1.7

React Server Components Type hardening and performance improvements (#36425 by @eps1lon and @unstubbable)

19.0.6

React Server Components Type hardening and performance improvements (#36425 by @eps1lon and @unstubbable)

19.2.5added

React Server Components Add more cycle protections (#36236 by @eps1lon and @unstubbable)

19.1.6added

React Server Components Add more cycle protections (#36236 by @eps1lon and @unstubbable)

19.0.5added

React Server Components Add more cycle protections (#36236 by @eps1lon and @unstubbable)

19.2.4added

React Server Components Add more DoS mitigations to Server Actions, and harden Server Components (#35632 by @gnoff, @lubieowoce, @sebmarkbage, @unstubbable)

19.1.5added

React Server Components Add more DoS mitigations to Server Actions, and harden Server Components (#35632 by @gnoff, @lubieowoce, @sebmarkbage, @unstubbable)

19.0.4added

React Server Components Add more DoS mitigations to Server Actions, and harden Server Components (#35632 by @gnoff, @lubieowoce, @sebmarkbage, @unstubbable)

19.1.4added

React Server Components Add extra loop protection to React Server Functions (@sebmarkbage #35351)

19.0.3added

React Server Components Add extra loop protection to React Server Functions (@sebmarkbage #35351)

19.2.3added

React Server Components Add extra loop protection to React Server Functions (@sebmarkbage #35351)

19.2.2fixed

React Server Components Move react-server-dom-webpack/*.unbundled to private react-server-dom-unbundled (@eps1lon https://github.com/facebook/react/pull/35290) Patch Promise cycles and toString on Server Functions (@sebmarkbage, @unstubbabl

19.1.3fixed

React Server Components Move react-server-dom-webpack/*.unbundled to private react-server-dom-unbundled (@eps1lon #35290) Patch Promise cycles and toString on Server Functions (@sebmarkbage, @unstubbable #35289, #35345)

19.0.2fixed

React Server Components Patch Promise cycles and toString on Server Functions (@sebmarkbage, @unstubbable #35289, #35345)

19.2.1fixed

React Server Components Bring React Server Component fixes to Server Actions (@sebmarkbage #35277)

19.1.2fixed

React Server Components Bring React Server Component fixes to Server Actions (@sebmarkbage #35277)

19.0.1fixed

React Server Components Bring React Server Component fixes to Server Actions (@sebmarkbage #35277)

19.2.0breakingaddedfixed

Below is a list of all new features, APIs, and bug fixes. Read the React 19.2 release post for more information. New React Features <Activity>: A new API to hide and restore the UI and internal state of its children. useEffectEvent is a Rea

19.1.1fixed

React Fixed Owner Stacks to work with ES2015 function.name semantics (#33680 by @hoxyq)

19.1.0addedfixedchanged

Owner Stack An Owner Stack is a string representing the components that are directly responsible for rendering a particular component. You can log Owner Stacks when debugging or use Owner Stacks to enhance error overlays or other developmen

19.0.0breakingaddedchanged

Below is a list of all new features, APIs, deprecations, and breaking changes. Read React 19 release post and React 19 upgrade guide for more information. Note: To help make the upgrade to React 19 easier, we’ve published a react@18.3 relea