Release 2023-02-26
Monitor the release status by regions at AKS-Release-Tracker.
Announcements
- AKS will deprecate Kubernetes version 1.23 on April 2nd 2023. Please upgrade your AKS clusters to version 1.24 or above.
- Java/JDK support for cgroups v2 is available in JDK 15 and above. Kubernetes 1.25+ and on AKS uses cgroups. Please migrate your workloads to the new JDK.
- Starting with Kubernetes 1.26:
- HostProcess Containers will be GA
- Some AKS labels will be deprecated. Update your AKS labels to the recommended substitutions. See more information on label deprecations and how to update your labels in the Use labels in an AKS cluster documentation.
- Starting with Kubernetes 1.27:
- The Max Surge default value will change on newly created nodepools from 1 to 10%.
- AKS began pod security policy deprecation on 2022-11-01 API. The pod security policy will be removed completely on 2023-06-01 API with AKS 1.25 version or higher. You can migrate pod security policy to pod security admission controller before the deprecation deadline.
Release notes
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Preview Features
- Support for (Pod Sandboxing)[https://learn.microsoft.com/en-gb/azure/aks/use-pod-sandboxing] workloads
- Enable windows metrics collection from the Azure Monitor Metrics
- (Node OS auto-upgrade channel)[https://learn.microsoft.com/en-us/azure/aks/auto-upgrade-node-image] for automatically applying OS security patches promptly
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Bug Fix
- In 2023-01-01 Azure API, a hot fix is released to fix this (bug)[https://github.com//issues/3481] and returns 400 error on PUT requests to "Base" or "Standard" parameters, allowing customers to still use "Basic" parameter in ManagedClusterSKUName with "Free" or "Paid" parameters in ManagedClusterSKUTier.
- Fix Agent Pool stop issue when powerstate reporting is inconsistent
- Fix blobfuse2 backward compatibility issue on AKS 1.25
- Fix cluster autoscaler scheduler bug which is causing CA to crash
- Update node label with Security Patch versions from VHD
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Behavior Changes
- Removed 5 minute back off when attemptng to delete a node pool with an existing operation taking place
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Component Updates
- Azure Blob CSI driver updated to version v1.19.1
- Update Prometheus Add-on to 02-22-2023
- AKS Windows 2019 image has been updated to 17763.4010.230223.
- AKS Windows 2022 image has been updated to 20348.1547.230223.