Generally Available: Ubuntu 24.04 support in AKS

Ubuntu 24.04 is now generally available on AKS in Kubernetes version 1.32 and above. Containerd 2.0 is enabled by default. Ubuntu 24.04 is default with `Ubuntu` OS Sku in kubernetes version 1.35 and above.

There are two ways that Ubuntu 24.04 can be enabled.

In Kubernetes version 1.32 and above, you can use the ‘Ubuntu2404’ OS Sku. This OS Sku can help you migrate existing clusters before you reach the minimum kubernetes version for Ubuntu 24.04 as default on AKS.

In Kubernetes version 1.35 and above, you can use ‘Ubuntu’ OS Sku which defaults to Ubuntu 24.04. If you are already using `Ubuntu` OS Sku and upgrade to kubernetes version 1.35 or above, you’ll automatically migrate to Ubuntu 24.04.

While migrating to Ubuntu 24.04, you can rollback to Ubuntu 22.04 by using the new OS SKU “Ubuntu2204” in Kubernetes versions 1.25 to 1.36. This functionality allows for more flexibility in testing and upgrading your OS versions without requiring a Kubernetes version upgrade.

Learn more.