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About this tracker

This tool keeps an eye on Microsoft’s Azure Kubernetes Service (AKS), Kubernetes Fleet Manager documentation, Azure Container Registry (ACR), and Azure Application Gateway for Containers (AGC). It also shows the last 5 release notes from AKS.

It automatically scans for changes, then uses AI to summarize and highlight updates that are most likely to matter — such as new features, deprecations, and significant content revisions.

Minor edits (like typos, formatting tweaks, and other low-impact changes) are usually filtered out. Because the process is automated, some updates may be missed or summaries may not capture every nuance.

For complete accuracy, you can always follow the provided links to the original Microsoft documentation.

With this tracker, you can:

  • Quickly scan meaningful AKS, ACR, AGC, and Fleet documentation changes from the past 7 days
  • Stay up to date with the latest AKS release notes without digging through every doc page

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AKS Releases

Latest 5 AKS releases with AI-generated summaries, breaking changes, and Good to Know information.

updated: 22/01/2026, 12:12:12

Release 2026-01-04

View Release
📅 2026-01-09

Release 2026-01-04 introduces Ubuntu 24.04 as the default OS for Kubernetes v1.35. It also announces the removal of Ubuntu 18.04 support and provides CIS benchmark results.

Breaking Changes

  • Ubuntu 18.04 support removed; scaling node pools no longer possible.
  • Creation of clusters with Basic Load Balancer blocked.
🔑

Key Features

  • Ubuntu 24.04 is now generally available.
  • CIS Kubernetes Benchmark v1.12.0 results published.
💡

Good to Know

  • Migrate to a supported Azure Linux version by upgrading node pools.
  • AKS no longer supports Azure Linux 2.0 since November 30, 2025.

Release 2025-10-12

View Release
📅 2025-10-17

Release 2025-10-12 announces the end of support for Azure Linux 2.0 and Ubuntu 18.04 VHDs, requiring migration to supported versions.

Breaking Changes

  • Support for Azure Linux 2.0 ends on November 30, 2025.
  • Removal of Ubuntu 18.04 VHDs on November 9, 2025.
💡

Good to Know

  • Migrate to supported Azure Linux version by upgrading node pools.

Release 2025-09-21

View Release
📅 2025-09-26

Release 2025-09-21 announces the deprecation of AKS Kubernetes version 1.31 support by November 1, 2025, and introduces new features for Vertical Pod Autoscaling.

Breaking Changes

  • Kubernetes version 1.31 standard support deprecated by November 1, 2025.
🔑

Key Features

  • Vertical Pod Autoscaling component will be highly available in version 1.34.
  • InPlaceOrRecreate feature gate enabled for Vertical Pod Autoscaling.
💡

Good to Know

  • Upgrade clusters to version 1.32 or enable Long Term Support with 1.31.

Release 2025-08-29

View Release
📅 2025-09-02

Release 2025-08-29 announces the general availability of AKS Automatic and introduces new patch versions for Kubernetes.

🔑

Key Features

  • AKS Automatic is now generally available.
  • New patch versions 1.33.3, 1.32.7, and 1.30.11 released.
💡

Good to Know

  • Automatic cluster creation allowed in GA supported regions only.
  • Migrating from SKU: ‘Base’ to ‘Automatic’ allowed in supported regions.

Release 2025-08-08

View Release
📅 2025-08-12

Release 2025-08-08 introduces managed clusters quota for AKS customers and includes critical security fixes for Kubernetes.

🔑

Key Features

  • Managed clusters quota rollout expected in September 2025.
  • Kubernetes patch versions include critical security fixes.
💡

Good to Know

  • Existing subscriptions will have a default limit based on current usage.

Documentation Updates

Meaningful updates to AKS, ACR, AGC, and Fleet docs from the last 7 days.
updated: 22/01/2026, 12:12:12 27 updates

Azure Kubernetes Service AKS – Azure Cni Overlay Pod Expand

Networking ♻️ Rework Modified: 2026-01-15 23:02
Summary

The document has been updated to clarify the process of expanding pod CIDR space in Azure CNI Overlay AKS clusters. It specifies that the operation is applicable only to Linux nodes and includes detailed requirements and parameters for the operation.

    Azure Kubernetes Service AKS – Monitor AKS

    Security ♻️ Rework Modified: 2026-01-20 23:07
    Summary

    This update introduces an AKS audit policy that controls event logging based on user actions and resource types. It details the different audit levels and provides a comprehensive table summarizing key audit policy rules applied in AKS.

      Azure Kubernetes Service AKS – Concepts Network Azure Cni Overlay

      Networking ♻️ Rework Modified: 2026-01-15 23:02
      Summary

      The document has been revised to enhance clarity regarding Azure CNI Overlay networking in AKS. It includes a more detailed description of the networking model, its architecture, and the differences from the traditional kubenet model.

        Azure Kubernetes Service AKS – Azure Cni Overlay

        Networking ♻️ Rework Modified: 2026-01-15 23:02
        Summary

        This article has been updated to provide clearer instructions on setting up Azure CNI Overlay in AKS, including dual-stack networking configuration and example workload deployment. It emphasizes the importance of understanding the network plugin behavior.

          Azure Kubernetes Service AKS – Get Started AKS

          General ♻️ Rework Modified: 2026-01-22 06:02
          Summary

          The document has been updated to reflect the latest date and improve the customer intent section, making it clearer for new users looking to get started with Azure Kubernetes Service.

            Azure Container Registry ACR – Container Registry Tutorial Sign Verify Notation Artifact Signing

            General ♻️ Rework Modified: 2026-01-21 23:10
            Summary

            The tutorial has been renamed and updated to focus on signing container images with Notation and Artifact Signing, replacing references to Trusted Signing. It provides a clearer description of the signing process and its significance.

              Azure Kubernetes Service AKS – 21Vianet Retirement

              General 🆕 New Modified: 2026-01-21 23:09
              Summary [!IMPORTANT]

                Azure Container Registry ACR – Overview Sign Verify Artifacts

                General ♻️ Rework Modified: 2026-01-21 23:10
                Summary

                The documentation has been updated to remove all references to "Trusted Signing," replacing it with "Artifact Signing" throughout the content. This change clarifies the terminology and ensures consistency, allowing users to better understand the streamlined signing experience offered by Artifact Signing. Additionally, links to tutorials for signing and verifying container images in both standard a…

                  Azure Kubernetes Service AKS – Localdns Custom

                  General ♻️ Rework Modified: 2026-01-20 23:07
                  Summary

                  The documentation for LocalDNS in AKS has been updated to include specific instructions for users utilizing Node Auto-Provisioning (NAP). Users can now find guidance on how to enable, disable, and configure LocalDNS when using NAP, enhancing their ability to manage DNS queries effectively within their AKS clusters. Additionally, the description of the `Disabled` parameter has been clarified to spe…

                    Azure Kubernetes Service AKS – API Server VNet Integration

                    General ♻️ Rework Modified: 2026-01-16 18:10
                    Summary

                    The documentation now emphasizes that after enabling API Server VNet Integration with the command `az aks update –enable-apiserver-vnet-integration`, users must immediately restart the cluster due to control plane resource transition. This restart is crucial as it ensures that all nodes reliably reconnect to the new API server endpoint, and delaying it increases the risk of capacity becoming unav…

                      Azure Kubernetes Service AKS – Use Kms V2

                      General ♻️ Rework Modified: 2026-01-20 23:07
                      Summary

                      The documentation now includes a specific error message users may encounter when running commands related to KMS in AKS, stating that "the object has been modified; please apply your changes to the latest version and try again" is safe to ignore. Additionally, the instructions for updating secrets using the `kubectl get secrets` command have been clarified to emphasize that this error can be disre…

                        Azure Container Registry ACR – Container Registry Tutorial Verify with Ratify AKS

                        General ♻️ Rework Modified: 2026-01-21 23:10
                        Summary

                        The documentation has been updated to replace all references to "Trusted Signing" with "Artifact Signing," reflecting a shift in terminology for the certificate management service used in the context of signing container images with Ratify on AKS. Users can now follow updated instructions for signing container images and configuring identity and access controls, ensuring they are aligned with the…

                          Azure Container Registry ACR – Container Registry Tutorial Github Sign Notation Artifact Signing

                          General ♻️ Rework Modified: 2026-01-21 23:10
                          Summary

                          The documentation has been updated to reflect the transition from "Trusted Signing" to "Artifact Signing" in the GitHub workflows tutorial. Users can now follow revised instructions to sign container images using the Artifact Signing feature, including changes to workflow file names, role assignments, and plugin references. Additionally, the tutorial emphasizes the importance of timestamping for A…

                            Azure Kubernetes Service AKS – Update Kms Key Vault

                            General ♻️ Rework Modified: 2026-01-20 23:07
                            Summary

                            The documentation now clarifies that when using the `kubectl replace` command for secrets, users may encounter an error stating, "The object has been modified; please apply your changes to the latest version and try again," which is safe to ignore. Additionally, the section on updating all secrets has been enhanced to emphasize that this error can be disregarded, ensuring users can proceed without…

                              Azure Kubernetes Service AKS – Node Auto Provisioning Aksnodeclass

                              Compute ♻️ Rework Modified: 2026-01-20 23:07
                              Summary

                              The documentation now includes enhanced details on the LocalDNS feature, clarifying its modes: `Disabled`, `Preferred`, and `Required`, along with their implications for DNS query resolution. Users can now enforce LocalDNS on their node pools by setting the mode to `Required`, ensuring that all prerequisites are met for successful deployment. Additionally, the documentation introduces support for…

                                Azure Kubernetes Service AKS – Istio Support Policy

                                General ♻️ Rework Modified: 2026-01-16 06:02
                                Summary

                                The support policy for Azure Service Mesh (ASM) has been updated to reflect changes in the release timelines and supported versions. Specifically, the expected deprecation dates for versions asm-1-25 and asm-1-27 have been clarified, and the supported versions for asm-1-27 and asm-1-28 have been expanded to include additional versions, allowing users to plan their upgrades more effectively. Users…

                                  Azure Kubernetes Service AKS – Outbound Rules Control Egress

                                  General ♻️ Rework Modified: 2026-01-21 23:09
                                  Summary

                                  The documentation now includes updated references to retired Microsoft Defender for Cloud features, specifically highlighting Microsoft Defender for Containers. Users can find relevant information about these retired features more easily, enhancing their understanding of the current capabilities and limitations within the service. Additionally, the inclusion of the 21Vianet retirement notice provi…

                                    Azure Kubernetes Service AKS – Kms Data Encryption Concepts

                                    General ♻️ Rework Modified: 2026-01-20 23:07
                                    Summary

                                    The documentation for the KMS data encryption concepts has been updated to clarify that AKS creates and manages only the encryption keys, removing references to Azure Key Vault. This change helps users better understand the specific responsibilities of AKS regarding key management.

                                      Kubernetes Fleet Manager Fleet – Update Strategies Gates Approvals

                                      General ✨ Update Modified: 2026-01-21 06:02
                                      Summary

                                      The documentation has been updated to reflect changes in the `gateId` format used for approvals in Kubernetes Fleet. Users should now reference the new example `gateId` format, which includes a different identifier, ensuring they are using the correct values when approving gates. Additionally, the command examples have been updated to align with this new `gateId`, enhancing clarity for users execu…

                                        Azure Container Registry ACR – Container Registry Tutorial Github Verify Notation Trusted Signing

                                        General ✨ Update Modified: 2026-01-20 21:17
                                        Summary

                                        The documentation has been updated to replace all references to "Trusted Signing" with "Artifact Signing." Users will now find updated instructions on verifying container images in GitHub Actions workflows, including changes to the root certificate downloads and the example `trustpolicy.json`. This change clarifies the terminology and ensures consistency throughout the tutorial.

                                          Azure Kubernetes Service AKS – Node Auto Provisioning

                                          Compute ♻️ Rework Modified: 2026-01-18 12:01
                                          Summary

                                          The documentation for Node Auto-Provisioning (NAP) has been updated to remove the limitation regarding Disk Encryption Sets, indicating that users can now utilize Disk Encryption Sets with NAP. This change enhances the flexibility and security options available for users provisioning nodes in Azure Kubernetes Service.

                                            Azure Container Registry ACR – Container Registry Tutorial Github Sign Notation Trusted Signing

                                            General ✨ Update Modified: 2026-01-20 21:17
                                            Summary

                                            The documentation has been updated to replace all references to "Trusted Signing" with "Artifact Signing," reflecting a change in terminology throughout the tutorial. Users will now learn how to sign container images in GitHub Actions using Artifact Signing, which includes updated commands, parameters, and descriptions relevant to this feature. Additionally, the setup instructions and account deta…

                                              Azure Kubernetes Service AKS – Use Kms Etcd Encryption

                                              General ♻️ Rework Modified: 2026-01-20 23:07
                                              Summary

                                              The documentation now includes a note clarifying that the error message "The object has been modified; please apply your changes to the latest version and try again" is safe to ignore when running specific commands. Additionally, it emphasizes that users should update all secrets using the `kubectl get secrets` command to ensure previously created secrets are no longer encrypted, and suggests subd…

                                                Azure Container Registry ACR – Container Registry Tutorial Sign Verify Notation Trusted Signing

                                                General ✨ Update Modified: 2026-01-20 21:47
                                                Summary

                                                The documentation has removed the "Preview" labels from the Artifact Signing section, indicating that it is now fully available for use. Additionally, all references to "Trusted Signing" have been updated to "Artifact Signing," clarifying the terminology throughout the article and ensuring users understand the current features and capabilities related to signing container images with Notation.

                                                  Azure Kubernetes Service AKS – Use Managed Identity

                                                  General ♻️ Rework Modified: 2026-01-21 23:09
                                                  Summary

                                                  The documentation for managing Azure Kubernetes Service (AKS) has been updated to include important considerations when updating a cluster. Users are now explicitly informed that if they were using the `–attach-acr` parameter to pull images from Azure Container Registry (ACR), they must run the `az aks update` command after the cluster update to ensure the new kubelet has the necessary permission…

                                                    Azure Kubernetes Service AKS – CLI Agent for AKS Install

                                                    General ♻️ Rework Modified: 2026-01-20 23:07
                                                    Summary

                                                    The documentation now specifies that users should replace `<RESOURCE_GROUP>` and `<CLUSTER_NAME>` with their actual AKS cluster’s resource group and name when using the `az aks get-credentials` and `az aks agent-init` commands. Additionally, the example command for querying node health with the agentic CLI has been updated to reflect this change, ensuring users provide the correct parameters for t…

                                                      Azure Kubernetes Service AKS – Kms Data Encryption

                                                      General ♻️ Rework Modified: 2026-01-20 23:07
                                                      Summary

                                                      The documentation now includes a new section on verifying KMS configuration after enabling KMS encryption, providing users with a specific Azure CLI command to check the security profile of their AKS cluster. The output format has also been updated to show detailed KMS configuration, including the status of Azure Key Vault integration and infrastructure encryption settings. This enhancement allows…