Supports Java versions 21 and 25

OpenCms stays up to date with modern Java versions and aligns with current platform requirements. It now supports Java 25 and the minimum required Java version has been raised to Java 21.

OpenCms now supports Java 25, ensuring compatibility with the latest Java features and performance improvements. At the same time, the minimum required Java version has been raised to Java 21.

This update allows developers and operators to benefit from long-term support releases, improved security, and ongoing enhancements in the Java ecosystem while keeping OpenCms installations future-proof.