Release Candidate 2.31-RC0

Apache ManifoldCF 2.31 includes the following improvements:

Core Performance & Modernization (The Java 25 Leap)

The transition to OpenJDK 25 is the foundation for a more scalable and responsive architecture.

Virtual Threads Integration:
Replaced legacy thread pooling with Virtual Threads to handle thousands of concurrent repository connections with minimal memory overhead. Implemented Structured Concurrency to improve the reliability of complex crawling jobs and prevent resource leakage.

[CONNECTORS-1784] - Core Performance & Modernization (The Java 25 Leap)

The ASF release artifacts can be found at the following URL:
https://dist.apache.org/repos/dist/dev/manifoldcf/apache-manifoldcf-2.31-RC0/

The Docker image apache/manifoldcf:2.31-RC0 is available at the following URL:
https://hub.docker.com/layers/apache/manifoldcf/2.31-RC0/images/sha256-abf1222ce03362f61814048a030c9dde9062c9633102328d03cf21b8669afbcb