---
name: containers-cs_versions_133
title: 1.33 version information and update actions
description: Review information about version 1.33 of IBM Cloud® Kubernetes Service. For more information about Kubernetes project version 1.33, see the Kubernetes change log.
last-updated: 2026-03-02
---

> ## Documentation Index
> The table of contents for this documentation set is at https://cloud.ibm.com/docs/containers?format=markdown
> The index for all IBM Cloud docs is at: https://cloud.ibm.com/docs/llms.txt
> Use these files to discover more information as needed.

# 1.33 version information and update actions
{: #cs_versions_133}


Review information about version 1.33 of IBM Cloud® Kubernetes Service. For more information about Kubernetes project version 1.33, see the [Kubernetes change log](https://kubernetes.io/releases/notes/.){: external}.
{: shortdesc}


![This badge indicates Kubernetes version 1.33 certification for IBM Cloud Kubernetes Service](images/certified-kubernetes-color.svg){: caption="Kubernetes version 1.33 certification badge" caption-side="bottom"} 

IBM Cloud Kubernetes Service is a Certified Kubernetes product for version 1.33 under the CNCF Kubernetes Software Conformance Certification program. _Kubernetes® is a registered trademark of The Linux Foundation in the United States and other countries, and is used pursuant to a license from The Linux Foundation._



## Release timeline 
{: #release_timeline_133}

The following table includes the expected release timeline for version 1.33 of IBM Cloud® Kubernetes Service. You can use this information for planning purposes, such as to estimate the general time that the version might become unsupported. 
{: shortdesc}

Dates that are marked with a dagger (`†`) are tentative and subject to change.
{: important}

| Version | Supported? | Release date | Unsupported date |
|------|------|----------|----------|
| 1.33 | Yes | 31 July 2025 | 14 October 2026 `†` |
{: caption="Release timeline for IBM Cloud Kubernetes Service version 1.33" caption-side="bottom"}


## Preparing to update
{: #prep-up-133}

This information summarizes updates that are likely to have an impact on deployed apps when you update a cluster to version 1.33. For a complete list of changes, review the [community Kubernetes change log](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.33.md){: external} and [IBM version change log](https://cloud.ibm.com/docs/containers?topic=containers-changelog_133&format=markdown) for version 1.33. You can also review the [Kubernetes helpful warnings](https://kubernetes.io/blog/2020/09/03/warnings/){: external}.


### Update before master
{: #before_133}

The following table shows the actions that you must take before you update the Kubernetes master.

| Type | Description |
| --- | --- |
| **Unsupported:** `gitRepo` volume driver | The `gitRepo` volume driver is not supported and cannot not be enabled via the `GitRepoVolumeDriver` feature gate. There are alternatives, such as using an `EmptyDir` volume mount with an `init` container to clone a repository by using `git`. For more information, see the [Removal of in-tree `gitRepo` volume driver](https://kubernetes.io/blog/2025/04/23/kubernetes-v1-33-release/#removal-of-in-tree-gitrepo-volume-driver). |
{: caption="Changes to make before you update the master to Kubernetes 1.33" caption-side="bottom"}


### Update after master
{: #after_133}

The following table shows the actions that you must take after you update the Kubernetes master.


| Type | Description |
| --- | --- |
| **Deprecated:** Service annotation `service.kubernetes.io/topology-mode` |  The service annotation `service.kubernetes.io/topology-mode` is deprecated and is not graduating from beta to GA. Migrate to the [service `.spec.trafficDistribution` field](https://kubernetes.io/docs/concepts/services-networking/service/#traffic-distribution) instead. This field is closely related to the `service.kubernetes.io/topology-mode` annotation and provides flexible options for traffic routing within Kubernetes. |
| **Deprecated:** `v1` version of the `Endpoints` API | The `v1` `Endpoints` API is deprecated. Migrate to the `discovery.k8s.io/v1` `EndpointSlice` API instead. For more information, see [Kubernetes v1.33: Continuing the transition from Endpoints to EndpointSlices](https://kubernetes.io/blog/2025/04/24/endpoints-deprecation/). |
{: caption="Changes to make after you update the master to Kubernetes 1.33" caption-side="bottom"}