PHP 8.3: security fixes only until December 31, 2027

php.net lists PHP 8.3 with active support until 31 Dec 2025 and security support until 31 Dec 2027. PHP 8.4 has active support until 31 Dec 2026, and PHP 8.5 until 31 Dec 2027.

What to do

Bugs that are not security issues won't get fixes in 8.3 any more. List the services still on it, and decide the target version before the end of the 8.2 window on 31 Dec 2026 pulls attention elsewhere.

Upgrade prep

• ☐ List services by PHP version
• ☐ Check extensions and frameworks
• ☐ Read the migration guide
• ☐ Set a target version and date

Weekly status report — track the upgrade →

Source: php.net, Supported Versions.