# Major Themes ## Action Required ## Notable Features ## Breaking Changes ### Removal of the API service and rookctl tool The [REST API service](https://github.com/rook/rook/issues/1122) has been removed. All cluster configuration is now accomplished through the [CRDs](https://rook.io/docs/rook/master/crds.html) or with the Ceph tools in the [toolbox](https://rook.io/docs/rook/master/toolbox.html). The tool `rookctl` has been removed from the toolbox pod. Cluster status and configuration can be queried and changed with the Ceph tools. Here are some sample commands to help with your transition. `rookctl` Command | Replaced by | Description --- | --- | --- `rookctl status` | `ceph status` | Query the status of the storage components `rookctl block` | See the [Block storage](Documentation/block.md) and [direct Block](Documentation/direct-tools.md#block-storage-tools) config | Create, configure, mount, or unmount a block image `rookctl filesystem` | See the [Filesystem](Documentation/filesystem.md) and [direct File](Documentation/direct-tools.md#shared-filesystem-tools) config | Create, configure, mount, or unmount a file system `rookctl object` | See the [Object storage](Documentation/object.md) config | Create and configure object stores and object users ## Known Issues ## Deprecations