End of life / jQuery / 1
End of life
jQuery 1 is past end of life.
Security fixes stopped on 20 May 2016, 3814 days ago. New vulnerabilities in 1 won’t be fixed.
- Released
- 31 Aug 2006
- Active support
- —
- Security fixes
- ended 20 May 2016
- Latest
- 1.12.4
Upgrade to jQuery 4: no end date announced yet.
Release cycles
Every jQuery cycle, at a glance.
Active support means bug fixes and security fixes; after it, security fixes only. Past the end of security support, nothing.
- Active support
- Security fixes only
- Supported
- Ends within 90 days
- Ended
Cycle
Status
Released
Active until
Security until
Latest
What to upgrade to
Go to 4.
4 is the newest supported jQuery cycle.
Before you upgrade
Load jQuery Migrate during the upgrade: it logs every removed API your code and plugins still call. WordPress ships its own copy; update WordPress rather than swapping it. Read the jQuery 4 upgrade guide
How to check your version
Which jQuery is this site on?
In the browser
In the lock file
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/jquery, checked daily · data as of 29 Oct 2026.