Gridware Cluster Scheduler and Open Cluster Scheduler 9.0.11 and 9.1 beta Available (2026-02-18)
New Patch Release: Gridware Cluster Scheduler & Open Cluster Scheduler 9.0.11
We are pleased to announce the availability of GCS/OCS 9.0.11, the latest patch release in the 9.0 series.
This release delivers a focused set of improvements and bug fixes, including enhanced qrsh reliability (output handling, environment variable propagation, session termination), removal of the libtirpc dependency, cleanup of interactive job support, and several build and packaging corrections. Full release notes are available in the changelog.
GCS/OCS 9.1 Beta
We also invite you to try the 9.1 Beta, which previews significant new capabilities:
- NUMA & cache-aware scheduling — new core and memory binding with L2/L3 cache awareness for improved performance
- TLS encryption — straightforward to configure out of the box
- Munge authentication support
- Qontrol — a modern web-based configuration UI replacing qmon
- DoS protection via fine-grained request rate limiting
We welcome feedback from early adopters. Please refer to the beta documentation for installation and upgrade guidance.