End of life / React
Release cycles
React end of life
5 cycles are supported, 19 to 15. Active support means bug fixes and security fixes; after it, security fixes only.
- Active support
- Security fixes only
- Supported
- Ends within 90 days
- Ended
Cycle
Status
Released
Active until
Security until
Latest
How to check your version
Which React is this site on?
In the lock file
In the browser
$ React.version
"19.3.1"
# in the console, when React is loaded globally
Know before support ends.
Porro reads the PHP, framework and database version from every site and tells you 90 days before support runs out.
Dates from endoflife.date/react, checked daily · data as of 29 Oct 2026.