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osTicket Version Compatibility Matrix

Quick reference for supported PHP, MySQL/MariaDB, and web server combinations per osTicket release. Always check the official docs for the definitive requirements. Last updated: .

PHP Version Support

osTicket PHP 8.1 PHP 8.2 PHP 8.3 PHP 8.4 PHP 8.5
v1.18.3✓ Works✓ Works✓ Works⭐ Recommended✗ Not supported
v1.18.2✓ Works✓ Works✓ Works✓ Works✗ Not supported
v1.18.1✓ Works✓ Works✓ Works✓ Works✗ Not supported
v1.17.7✓ Works✓ Works✓ Works✓ Works✗ Not supported
v1.17.5✓ Works⚠ Caution⚠ Caution⚠ Caution✗ No
v1.16.x⚠ EOL branch✗ Not tested✗ Not tested✗ Not tested✗ No

⭐ = Recommended  |  ✓ = Supported  |  ⚠ = Works but not recommended  |  ✗ = Not supported

Database Support

osTicket MySQL 5.7 MySQL 8.0 MySQL 8.4 MariaDB 10.5 MariaDB 10.6+ MariaDB 11.x
v1.18.3⚠ Legacy✓ Works✓ Works✓ Works⭐ Recommended✓ Works
v1.18.2⚠ Legacy✓ Works✓ Works✓ Works⭐ Recommended✓ Works
v1.17.7⚠ Legacy✓ Works✓ Works✓ Works✓ Works✓ Works

Web Server Support

Web Server Supported Notes
Apache 2.4⭐ Recommended.htaccess rewrite rules included. mod_rewrite required.
LiteSpeed✓ SupportedUses .htaccess rules. LSAPI recommended over PHP-FPM.
IIS 10+✓ Supportedweb.config included. URL Rewrite module required. PHP via FastCGI.
NGINX⚠ Manual configNot supported out of the box. Requires manual location blocks. See NGINX HowTo guide.
Caddy⚠ CommunityNot officially supported. Community configurations exist.

Related Resources