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AKS version end of support and extended support dates
Azure Kubernetes Service (AKS) · Last updated · checked against the official Azure page (opens in new tab) · cross-checked with endoflife.date (opens in new tab)
| Version | Release / GA | Standard support ends | Extended support ends | Notes |
|---|---|---|---|---|
| 1.29 | Mar 2024 (month only) | Mar 2025 (month only) | Apr 2026 (month only) | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: Jun 2027. |
| 1.30 | Jul 2024 (month only) | Aug 22, 2025 | Jul 2026 (month only) | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: Jun 2027. |
| 1.31 | Nov 2024 (month only) | Nov 1, 2025 | Nov 2026 (month only) | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: Jun 2027. |
| 1.32 | Apr 2025 (month only) | Mar 2026 (month only) | Mar 2027 (month only) | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: Jun 2027. |
| 1.33 | Jun 2025 (month only) | Jul 2026 (month only) | Jul 2027 (month only) | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: Oct 2027. |
| 1.34 | Nov 2025 (month only) | Nov 2026 (month only) | Nov 2027 (month only) | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: Feb 2028. |
| 1.35 | Mar 2026 (month only) | Mar 2027 (month only) | Mar 2028 (month only) | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: Jun 2028. |
| 1.36 | Jun 2026 (month only) | Jun 2027 (month only) | Jun 2028 (month only) | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: Sep 2028. |
| 1.37 | Oct 2026 (month only) | Oct 2027 (month only) | Oct 2028 (month only) | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: Jan 2029. |
| 1.38 | Feb 2027 (month only) | Unknown / not published | Unknown / not published | AKS publishes most dates as month only. extended_end = LTS end of life (Premium tier + LTS plan required). Platform-initiated upgrade: TBD. |
Grey = already passed. unverified = not found on the current official page (usually historical dates that providers have removed). Source for every row: https://learn.microsoft.com/en-us/azure/aks/supported-kubernetes-versions (opens in new tab)
What to check before you upgrade AKS
Upgrading the control plane is the easy part. What breaks is usually workloads and add-ons that still call APIs the new version no longer serves. Here is what to look for — not a diagnosis of your cluster.
Removed APIs
- Find manifests, Helm charts and controllers still using API versions that are no longer served in your target version (table below). Upgrading the cluster does not rewrite stored manifests in Git or Helm releases. Kubernetes deprecated API migration guide (opens in new tab)
- Kubernetes only allows the control plane to move one minor version at a time, so check every removal between your current and target version. Version skew policy (opens in new tab)
| Upgrading to | API versions no longer served |
|---|---|
| 1.32 |
|
| 1.29 |
|
The official guide lists no API removals after v1.32 as of our last check; deprecations can still change behavior, so read the changelog. Source: Kubernetes deprecated API migration guide (opens in new tab).
Add-ons, CSI, CNI and ingress
- Review AKS release notes for add-on and CSI driver version changes with each Kubernetes version. AKS release notes (opens in new tab)
- Check third-party controllers you run (ingress controllers, cert-manager, service mesh, autoscalers, policy engines) against their own supported-Kubernetes-version matrix before upgrading.
Nodes and OS images
- Check the node OS image (Ubuntu or Azure Linux) changes for your target version. AKS node images (opens in new tab)
- Node (kubelet) versions may lag the control plane only within the supported skew; plan node pool upgrades right after the control plane. Version skew policy (opens in new tab)
Tools that detect issues
- AKS stops upgrades when it detects usage of deprecated APIs and documents how to check for them in the portal. AKS API breaking-change detection (opens in new tab)
- kubent (kube-no-trouble) scans a live cluster for deprecated/removed API usage. kubent (opens in new tab)
- Pluto finds deprecated apiVersions in files, Helm releases and live clusters. Pluto (opens in new tab)
- kubectl convert rewrites manifests to a newer API version. kubectl-convert (opens in new tab)
- The API server exposes an apiserver_requested_deprecated_apis metric and adds a warning header when a deprecated API is called. Kubernetes docs (opens in new tab)
Official docs: Official upgrade guide (opens in new tab) · Kubernetes deprecated API migration guide (opens in new tab) · Kubernetes changelogs (opens in new tab)
This is a list of what to look for, compiled from official documentation — not advice for your specific setup.
AKS end of support FAQ
When did AKS 1.32 end standard support?
AKS 1.32 ended standard support in Mar 2026 (month only), according to the official Azure page. Extended support runs until Mar 2027 (month only).
When did AKS 1.33 end standard support?
AKS 1.33 ended standard support in Jul 2026 (month only), according to the official Azure page. Extended support runs until Jul 2027 (month only).
When does AKS 1.34 end standard support?
AKS 1.34 ends standard support in Nov 2026 (month only), according to the official Azure page. Extended support runs until Nov 2027 (month only).
When does AKS 1.35 end standard support?
AKS 1.35 ends standard support in Mar 2027 (month only), according to the official Azure page. Extended support runs until Mar 2028 (month only).
When does AKS 1.36 end standard support?
AKS 1.36 ends standard support in Jun 2027 (month only), according to the official Azure page. Extended support runs until Jun 2028 (month only).
When does AKS 1.37 end standard support?
AKS 1.37 ends standard support in Oct 2027 (month only), according to the official Azure page. Extended support runs until Oct 2028 (month only).
Which AKS version loses support next?
AKS 1.34 is next. It ends standard support in Nov 2026 (month only).
How much does AKS extended support cost?
We have not yet verified the AKS extended-support rate from an official Azure price page, so we don't quote a number. What we know: Long-term support (LTS) requires the AKS Premium tier; Microsoft points to AKS pricing for the rate (not captured — unverified).
What should I check before upgrading AKS?
Check for Kubernetes APIs that are no longer served in your target version (the Kubernetes deprecated API migration guide lists them, e.g. v1.25 removed batch/v1beta1 CronJob and policy/v1beta1 PodDisruptionBudget, and v1.32 removed flowcontrol.apiserver.k8s.io/v1beta3), add-on and driver compatibility, and node image changes. Tools such as kubent and Pluto scan for deprecated API usage.
Answers are generated from the verified dates in the table above. Source: https://learn.microsoft.com/en-us/azure/aks/supported-kubernetes-versions (opens in new tab)
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