# Releases - Feb 2023

**23 Feb, 2023**

Important

The following release note applies only for customers that use/operate the Self Hosted Controller.

### Self Hosted Controller v1.22 for GKE

The [Self Hosted Controller](https://docs.rafay.co/selfhosted/overview/) software for GKE has been updated to ["v1.22"](https://docs.rafay.co/releasenotes/2023/jan/) of the controller software. Customers using the GKE form factor of the controller software are encouraged to review the newly available functionality to assess if they wish to upgrade their self hosted controller instances.

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**21 Feb, 2023**

### Self Hosted Controller v1.21 for RHEL 8.7

The [Self Hosted (Air Gapped) Controller](https://docs.rafay.co/selfhosted/overview/) software for bare metal and VM based environments now supports RHEL v8.7 as the node OS for the Kubernetes substate hosting the controller software.

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