# Redis Enterprise for Kubernetes release notes 6.4.2-5 (April 2023)

```json metadata
{
  "title": "Redis Enterprise for Kubernetes release notes 6.4.2-5 (April 2023)",
  "description": "The Redis Enterprise K8s 6.4.2-5 is a maintenance release for version 6.4.2-4.",
  "categories": ["docs","operate","kubernetes"],
  "tableOfContents": {"sections":[{"id":"overview","title":"Overview"},{"children":[{"id":"openshift-images","title":"OpenShift images"},{"id":"openshift-olm-bundles","title":"OpenShift OLM bundles"}],"id":"images","title":"Images"},{"id":"feature-enhancements","title":"Feature enhancements"},{"id":"bug-fixes","title":"Bug fixes"},{"id":"compatibility-notes","title":"Compatibility notes"},{"id":"before-upgrading","title":"Before upgrading"},{"id":"known-limitations","title":"Known limitations"},{"id":"security","title":"Security"}]}

,
  "codeExamples": []
}
```## Overview

This is a maintenance release of Redis Enterprise for Kubernetes 6.4.2-4 that adds supports for Redis Enterprise 6.4.2-61.

New images and fixes are listed below. Refer to [6.2.4-4 (March 2023)](https://redis.io/docs/latest/operate/kubernetes/release-notes/previous-releases/k8s-6-4-2-4.md) for compatibility notes and known limitations.

## Images

* **Redis Enterprise**: `redislabs/redis:6.4.2-61`
* **Operator**: `redislabs/operator:6.4.2-5`
* **Services Rigger**: `redislabs/k8s-controller:6.4.2-5`

### OpenShift images

* **Redis Enterprise**: `registry.connect.redhat.com/redislabs/redis-enterprise:6.4.2-61.rhel8-openshift`
    (or `redislabs/redis-enterprise:6.4.2-61.rhel7-openshift` if upgrading from RHEL 7)
* **Operator**: `registry.connect.redhat.com/redislabs/redis-enterprise-operator:6.4.2-5`
* **Services Rigger**: `registry.connect.redhat.com/redislabs/services-manager:6.4.2-5`

### OpenShift OLM bundles

* Redis Enterprise operator bundle version: `v6.4.2-5.0`

## Feature enhancements

* Upgraded to support Redis Enterprise 6.4.2-61

## Bug fixes

* Fixed bug that can cause Redis cluster to become unresponsive during a Kubernetes upgrade on clusters with more than 9 REC nodes. (RED-93025)

## Compatibility notes

See [Redis Enterprise for Kubernetes release notes 6.4.2-4 (March 2023)](https://redis.io/docs/latest/operate/kubernetes/release-notes/previous-releases/k8s-6-4-2-4.md).

## Before upgrading

Be aware the following changes included in this release affect the upgrade process. Please read carefully before upgrading,

* **Supported upgrade paths**

  If you are using a version earlier than 6.2.10-45, you cannot upgrade directly to this release. You must upgrade to 6.2.10-45 before you can upgrade to versions 6.2.18 or later.

* **ValidatingWebhookConfiguration**

  This release uses a new `ValidatingWebhookConfiguration` resource to replace the `redb-admission` webhook resource. To use releases 6.4.2-4 or later, delete the old webhook resource and apply the new file. See [upgrade Redis cluster](https://redis.io/docs/latest/operate/kubernetes/upgrade/upgrade-redis-cluster#reapply-webhook) for instructions.

## Known limitations

See [Redis Enterprise for Kubernetes release notes 6.4.2-4 (March 2023)](https://redis.io/docs/latest/operate/kubernetes/release-notes/previous-releases/k8s-6-4-2-4.md).

## Security

For a list of fixes related to CVEs, see the [Redis Enterprise 6.4.2-61 release notes](https://redis.io/docs/latest/operate/rs/release-notes/rs-6-4-2-releases/rs-6-4-2-61).