--- prelude: | The ``OpenStack 2025.2`` (``Watcher 15.0.0``) release delivers stronger security, granular operational control, and comprehensive monitoring capabilities for cloud optimization. This release strengthens the foundation for reliable, large-scale cloud operations while giving administrators complete flexibility in managing optimization workflows. Cloud operators gain secure and reliable volume migration processes that eliminate data loss scenarios and ensure tenant isolation. The Host Maintenance strategy now provides granular control over migration behavior, including the ability to disable live or cold migration and safely stop instances when migration cannot proceed. The new ``Aetos data source`` adds secure, role-based access to Prometheus metrics through Keystone authentication. This enables multi-tenant monitoring while maintaining access controls across your cloud infrastructure. Administrators can now exercise precise control over optimization workflows by manually skipping actions or allowing Watcher to automatically skip actions based on detected conditions. Custom status messages document why administrators or Watcher took specific actions, improving operational visibility and troubleshooting.