On June 30, 2027, we'll retire Ubuntu 22.04 on Azure
Kubernetes Service. To avoid disruptions, transition to
Ubuntu 24.04 or later by that date. Newer
supported versions include kernel
updates and security improvements.
Until June 30, 2027, you can continue to use Ubuntu 22.04 on
AKS without disruption. If you don't migrate by June 30, 2027, you won't be
able to create new node pools, AKS won't produce new node images, and you'll no
longer receive security patches for existing node pools. If you'd like to
enable long-term support with Kubernetes version 1.33+, first update your node
pools to Ubuntu 24.04.
On April 30, 2028 AKS will remove Ubuntu 22.04 node images
and existing code, causing scaling and remediation operations to
fail.
Migration Options:
- Default Operating System SKU (OSSku): If you're using
'Ubuntu,' you'll automatically migrate to Ubuntu 24.04 when you upgrade
your Kubernetes version to 1.35 or later.
- Versioned OSSku: If you're using 'Ubuntu2204,' update
your OSSku to 'Ubuntu' for Kubernetes 1.35 or later, or 'Ubuntu2404' for
Kubernetes 1.32 or later.
Learn
more:
- Get answers from community experts in Microsoft
Q&A or AKS
GitHub.
- For support plan and need technical help,
follow the documentation
- Find out about service retirements that may impact
your resources in the Azure
Retirement Workbook. Retirements may not be visible in the workbook
for up to two weeks after being announced.