---
ms.service: azure-kubernetes-service
ms.topic: include
ms.date: 01/14/2026
author: schaffererin
ms.author: schaffererin
---

> [!IMPORTANT]
> Starting on **September 30, 2025**, Azure Kubernetes Service (AKS) no longer supports Availability Sets. Clusters with Availability Sets after this date are considered out of support. Migrate all workloads to [Virtual Machines node pools](/azure/aks/virtual-machines-node-pools) before this date to ensure ongoing support and take advantage of enhanced management features. For more information on this retirement, see the [Retirement GitHub issue](https://github.com/Azure/AKS/issues/5021). To stay informed on announcements and updates, follow the [AKS release notes](https://github.com/Azure/AKS/releases).