# Open Cluster Management v1.0.0

> Orchestration & Management · 2025-06-16

A feature-oriented release adds label synchronization and new configuration and API capabilities alongside performance improvements, bug fixes, and dependency updates. Operators should review the breaking behavior changes and API transition before upgrading.

## Action needed
- **[breaking]** Hub lease checking removed
  - Checking leases on the hub is removed.
- **[breaking]** `CEL` in the placement decision group removed
  - `CEL` is removed from the placement decision group.

## Check if affected
- **[breaking]** The `ResourceCleanup` feature gate enabled by default
  - Applies if you do not configure `ResourceCleanup`.
  - The upgrade API enables the `ResourceCleanup` feature gate by default.
- **[breaking]** The deprecated `work execution clusterrolebinding` removed
  - Applies if you configure the deprecated `work execution clusterrolebinding`.
  - The deprecated `work execution clusterrolebinding` is removed.
- **[breaking]** Resources relating to `k8s v1.11` removed
  - Applies if you depend on `k8s v1.11`.
  - Resources relating to `k8s v1.11` are removed.

## Other recorded changes
- 42 (value_changed 18, added 16, defect_corrected 6, renamed 1, constraint_changed 1)

[Full analysis](https://ratatosk.io/en/releases/open-cluster-management/v1.0.0)

[Original release notes](https://github.com/open-cluster-management-io/ocm/releases/tag/v1.0.0)