Can I upgrade AKS from 1.24.9 to 1.28.13 without rebuilding cluster

Seth Abady 20 Reputation points
2024-11-11T14:46:59.2366667+00:00

I've inherited an AKS 1.24.9 cluster and need to update. Can this be done without rebuilding.

Azure Kubernetes Service (AKS)
Azure Kubernetes Service (AKS)
An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.
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  1. Nikhil Duserla 3,455 Reputation points Microsoft Vendor
    2024-11-11T18:16:46.7666667+00:00

    Hi Seth Abady,

    Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.

    Upgrading an Azure Kubernetes Service (AKS) cluster from version 1.24.9 to 1.28.13 involves several considerations. When you upgrade a supported AKS cluster, you can't skip Kubernetes minor versions. You must perform all upgrades sequentially by major version number. For example, upgrades between 1.14.x -> 1.15.x or 1.15.x -> 1.16.x are allowed. 1.14.x -> 1.16.x isn't allowed. You can only skip multiple versions when upgrading from an unsupported version back to a supported version. For example, you can perform an upgrade from an unsupported 1.10.x to a supported 1.12.x if available.

    It provides a clear explanation of how to upgrade a cluster. Please review it and let me know if you encounter any problems. Upgrade an Azure Kubernetes Service (AKS) cluster

    If no upgrades are available, create a new cluster with a supported version of Kubernetes and migrate your workloads from the existing cluster to the new cluster. AKS does not support upgrading a cluster to a newer Kubernetes version when no upgrades are available.

    If you have any further queries, do let us know.


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