Merge pull request #2826 from Azure/2022-02-17

Release Notes for 2022-02-17 and 2022-02-24

CHANGELOG.md

@@ -1,5 +1,43 @@
 # Azure Kubernetes Service Changelog
 
+## Release 2022-02-24
+
+This release is rolling out to all regions - estimated time for completed roll out is 2022-03-09 for public cloud and 2022-03-12 for sovereign clouds.
+### Announcements
+
+* From Kubernetes 1.23, containerD will be the default container runtime for Windows node pools. Docker support will be deprecated in Kubernetes 1.24. You are advised to test your workloads before Docker deprecation happens by following the documentation [here](https://docs.microsoft.com/azure/aks/windows-container-cli#add-a-windows-server-node-pool-with-containerd-preview).
+* Starting with 1.24 the default format of clusterUser credential for AAD enabled clusters will be ‘exec’, which requires [kubelogin](https://github.com/Azure/kubelogin) binary in the execution PATH. If you are using Azure CLI, it will prompt users to download kubelogin. There will be no behavior change for non-AAD clusters, or AAD clusters whose version is older than 1.24. Existing downloaded kubeconfig will still work. We provide an optional query parameter ‘format’ when getting clusterUser credential to overwrite the default behavior change, you can explicitly specify format to ‘azure’ to get old format kubeconfig.
+* Starting in Kubernetes 1.23 AKS Metrics server deployment will start having 2 pods instead of 1 for HA, which will increase the memory requests of the system by 54Mb.
+
+### Release notes
+
+* Behavioral changes
+  * The default VNET address for managed VNETs will change from 10.0.0.0/8 to 10.240.0.0/16 and the default node subnet address will change from 10.224.0.0/12 to 10.224.0.0/16. New clusters will be required to have service and pod CIDR ranges that do not overlap with these new VNET ranges.
+* Bug fixes
+  * Fix azure disk resize timeout issue on aks 1.21+
+* Preview features
+  * Associate capacity reservation to node pools. Documentation available [here](https://docs.microsoft.com/azure/aks/use-multiple-node-pools#associate-capacity-reservation-groups-to-node-pools-preview).
+* Component updates
+  * AKS Ubuntu 18.04 image updated to [AKSUbuntu-1804-2022.02.19](vhd-notes/aks-ubuntu/AKSUbuntu-1804/2022.02.19.txt).
+  * Azure Policy for AKS updated to [Gatekeeper 3.7.1](https://github.com/open-policy-agent/gatekeeper/releases/tag/v3.7.1)
+
+## Release 2022-02-17
+
+This release is rolling out to all regions - estimated time for completed roll out is 2022-03-02 for public cloud and 2022-03-05 for sovereign clouds.
+
+### Announcement
+
+* From Kubernetes 1.23, containerD will be the default container runtime for Windows node pools. Docker support will be deprecated in Kubernetes 1.24. You are advised to test your workloads before Docker deprecation happens by following the documentation here https://docs.microsoft.com/en-us/azure/aks/windows-container-cli#add-a-windows-server-node-pool-with-containerd-preview.
+* Konnectivity rollout will continue in Feb 2022.
+* Starting with 1.23 AKS will follow upstream kubernetes and deprecate in-tree azure authentication which is marked for deprecation to be replaced with 'exec'. If you are using Azure CLI or Azure clients, AKS will download kubelogin for users automatically. If outside of Azure CLI, users need to download and install kubelogin in order to continue to use kubectl with AAD authentication. <https://github.com/Azure/kubelogin>
+* Starting in Kubernetes 1.23 AKS Metrics server deployment will start having 2 pods instead of 1 for HA, which will increase the memory requests of the system by 54Mb.
+
+### Release Notes
+
+* Component Updates
+  * Calico updated to v3.21.4 on Windows
+  * AKS Ubuntu 18.04 image updated to [AKSUbuntu-1804-2022.02.15](vhd-notes/aks-ubuntu/AKSUbuntu-1804/2022.02.15.txt).
+
 ## Release 2022-02-10
 
 This release is rolling out to all regions - estimated time for completed roll out is 2022-02-23 for public cloud and 2022-02-26 for sovereign clouds.