Update Kubernetes version

Update patch version

For your information

Automatic patch version updates are not available:

for clusters on dedicated servers;
for basic clusters on cloud servers;
for high-availability clusters on cloud servers with fewer than two worker nodes.

carefully

Updating will reinstall all nodes. All data on the boot disk will be deleted.

Kubernetes patch versions contain bug fixes and security vulnerability patches for a specific minor version of Kubernetes. They are compatible with each other within the same minor version.

If automatic patch version updates are enabled, the cluster will be updated to the latest available patch version during the next cluster maintenance window.

You can enable automatic patch version updates when creating a cluster or for an already created cluster.

In the Control panel, on the top menu, click Products and select Managed Kubernetes.
Open the cluster page → Settings tab.
In the Automation block, enable automatic patch version updates.

Update minor version

For your information

Updating the minor version is not available for Managed Kubernetes clusters on dedicated servers.

carefully

Updating will reinstall all nodes. All data on the boot disk will be deleted.

You can manually update the minor Kubernetes version. First, the master nodes will be updated sequentially, followed by the worker nodes. The update process can take anywhere from 30 minutes to 12 hours, depending on the cluster size. Once the update is initiated, it cannot be stopped.

In the Control panel, on the top menu, click Products and select Managed Kubernetes.
Open the cluster page → Settings tab.
In the Cluster settings block, click Show available versions.
Select the version to update to.
Optional: to view the version history in the official Kubernetes documentation, click Version change history.
Click Update.