osTicket 1.18.3 has been released with some upgrades to included packages and a small slew of security updates.
Enhancements
Security
security: Latest Patches 01/2026 (c646c8c, d1b634a, 6852e71, 8db4d37, 1552cfa, d832f24)
The old branch (1.17) has also received a maintenance release v 1.17.7 with a hefty list of improvements.
You can read the release notes here: https://github.com/osTicket/osTicket/releases/tag/v1.17.7
Always utilize the official download site osticket.com/download to download releases, language packs, and plugins.