PHP 8.5.11 Released!
Unrated
The PHP development team announces the immediate availability of PHP 8.5.11. This is a security release. All PHP 8.5 users are encouraged to upgrade to this version. For source downloads of PHP 8.5.11 please visit our downloads page , Windows source and binaries can also be found there . The list of changes is recorded in the ChangeLog .
Remediation
Update PHP to the fixed release for your branch (8.2.35, 8.3.36, 8.4.27, 8.5.12). Branches below 8.2 have no fixed release — upgrade the branch or take the site offline.
Affected PHP branches
{'branch': '8.5', 'fixed_in': '8.5.12', 'status': 'patched release available'}
Source: PHP.net News · retrieved 2026-10-22T10:19:14-04:00 · https://www.php.net/index.php#2026-09-24-3