Generally Available: Ubuntu 24.04 support in AKS

Customers upgrading AKS clusters often need a clear and flexible path to adopt new OS versions without disrupting workloads. Ubuntu 24.04 is now generally available on AKS starting with Kubernetes version 1.32, with containerd 2.0 enabled by default.  

It can be enabled using the new Ubuntu2404 OS SKU in Kubernetes 1.32 and above, or by using the standard Ubuntu OS SKU in Kubernetes 1.35 and above, where Ubuntu 24.04 becomes the default.  

Existing clusters already using the Ubuntu OS SKU will automatically migrate to Ubuntu 24.04 when upgraded to Kubernetes 1.35 or later.  

For rollback or testing scenarios, AKS also now supports the Ubuntu2204 OS SKU across Kubernetes versions 1.25 through 1.36, allowing practitioners to switch OS versions without requiring a Kubernetes version change. These options provide more control over OS lifecycle management and simplify migration planning for cluster operators. 

Learn more.