Azure/AKS 2023-04-16

Release 2023-04-16

on GitHub

Release 2023-04-16

Monitor the release status by regions at AKS-Release-Tracker.

Announcements

• Starting on March 21, 2023, traffic to k8s.gcr.io will be redirected to registry.k8s.io, following the community announcement.
• Docker container runtime will be retired for Windows nodepools on May 1, 2023. After docker container runtime is retired, you may remain on existing deployed instances but scaling operations will fail, nodepool creation will fail, and you will be out of support. Follow the detailed steps in our documentation to upgrade to containerd.
• Each Kubernetes version is supported for 12 months. After 12 months, the minor version will shift to platform support only. Our new platform support policy provides customers with Azure infrastructure support while the cluster is in an n-3 version (where n is the latest supported AKS GA minor version). Platform support does not include anything related to Kubernetes functionality and components, but provides customers with additional support beyond what was previously provided for unsupported versions.

Release notes

• Features

  • Dual-stack networking (IPv4/IPv6) on kubenet is now generally available.

• Preview Features

  • Istio-based service mesh add-on for Azure Kubernetes Service is now available in preview.

• Bug Fix

  • Fixed an issue that prevented the user-assigned managed identity of the AKS cluster from being updated from identity to another user-assigned managed identity.
  • Disabled kubelet-registration-probe on Windows nodes of AKS version 1.26 to reduce CPU consumption.
  • For clusters using Image Cleaner preview feature, the unused role eraser-leader-election-role and rolebinding eraser-leader-election-rolebinding have been deleted.
  • Reduced Azure Blob CSI driver memory limit on agent node from 2100Mi to 400Mi.
  • For dual-stack networking (IPv4/IPv6) clusters, fixed an issue where the Standard Load Balancer couldn't have IPv6 public prefixes.

• Behavior Changes

  • For AKS clusters of version >= 1.23, RuntimeDefault is set as the default seccomp profile for all workloads.

• Component Updates

  • Azure cloud controller manager image updated to v1.23.30, v1.24.17, v1.25.11 and v1.26.7.
  • Updated Azure Disk CSI driver to 1.26.3 on AKS clusters of versions >= 1.24.
  • Azure Monitor Container Insights image has been updated to 3.1.6
  • AKS Ubuntu 18.04 image has been updated to AKSUbuntu-1804-202304.10.0.
  • AKS Ubuntu 22.04 image has been updated to AKSUbuntu-2204-202304.10.0.
  • AKS Mariner image has been updated to AKSMariner-202304.10.0.
  • AKS Windows 2019 image has been updated to 17763.4252.230412.
  • AKS Windows 2022 image has been updated to 20348.1668.230412.