On 07-Oct-2025, officially the React Compiler has had its first stable release :D.
Notable changes since 19.1.0-rc2 (and 19.1.0-rc3 which is also undocumented):
Zod v3/v4 compatibility - no longer crashes when users have Zod v4 installed.
React Compiler Playground update:
Added a "Config Override" panel that lets users adjust compiler options.
Introduced an "Applied Configs" section to display the complete set of active compiler configurations.
Detection of incompatible libraries (now I can finally rest in peace!) - the compiler now detects and warns when incompatible libraries with automatic memoization are used.
CommonJS support.
More granular ESLint rules
Bugfixes:
Fixed postfix operator handling.
Added clear, user-friendly error messages for unsupported JavaScript features like `eval()`.
and many more!
Just a heads-up: Im not part of the React core team or speaking on their behalf. This is **NOT** an official changelog (we're still waiting on that :). Instead, its a compilation of changes Ive observed during my extended use.
EDIT: Official Release blog post has been made on the React website
When is the official release date for react 19?
React 19 release date?
Thoughts on the new react compiler?
Introducing React Compiler – React
Videos
Feels like we've had the rc for a while now, but I haven't heard any word on the official release yet