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AKS starts upgrading unsupported clusters June 1, 2027

Readers can stay on Azure Kubernetes Service (AKS): they change a setting or plan. Help the ones who would rather leave.

226 days left · June 1, 2027 · Public page

Low switching pressure29/100

An estimate from the deadline, cost, discussion and need to move. It is not a product rating.

What goes into it

Confidence: medium.

deadline8/30
money14/25
attention0/25
audience0/12
force7/8
  • Hard deadline in 226 days.
  • The change is forced: it reaches users even if they wait.

  1. 1 Related discussions

    Only threads tied to this event that talk about leaving, moving or prices. Saved, not live. Check the date and read the thread before replying.

    No live threads yet.

  2. 2 What people ask

    No common questions yet.

  3. 3 Reply templates

    Answer the question first. Link only if it helps. Always keep the disclosure line. Never post the same text twice.

    Helpful first
    Sorry you have to deal with this. You can stay on Azure Kubernetes Service (AKS). Here is what to change before June 1, 2027:

1. Find clusters out of support. Check the Kubernetes version of each cluster against the AKS release calendar.
2. Remove deprecated APIs. In the Azure portal, open Diagnose and solve problems, then Kubernetes API deprecations. Fix what it finds.
3. Upgrade on your own schedule. Upgrade with az aks upgrade before May 31, 2027. Then set the stable auto-upgrade channel.

If they would rather leave, describe a verified way <your product> can help: <your link>
[Disclosure: I build <your product>.]
    Short answer
    You have until June 1, 2027. You can stay on Azure Kubernetes Service (AKS). First: find clusters out of support. Then remove deprecated APIs.
Happy to help if you get stuck.
[Disclosure: I build <your product>.]

  4. 4 Switch-page builder

    Create a draft “Switch from Azure Kubernetes Service” page. Add your product, review every claim, then copy HTML or Markdown. Your product claims need your own evidence.

    • Add your product name to replace “Your product”.
    Preview

    Switch from Azure Kubernetes Service to Your product

    AKS clusters on unsupported Kubernetes versions: a change is due by June 1. You can stay on Azure Kubernetes Service (AKS). If you would rather leave, here is how to move to Your product.

    What changes at Azure Kubernetes Service (AKS)

    From June 1, 2027, AKS upgrades clusters that still run an unsupported Kubernetes version. It ignores your maintenance window and the deprecated API check. There is no opt-out.

    • Platform-initiated upgrades start: June 1, 2027 (Microsoft)
    • Which clusters: Clusters on an unsupported Kubernetes version after the platform support grace period (Microsoft)
    • Upgrade at your own pace until: May 31, 2027 (Microsoft)
    • What it ignores: Your maintenance window and the deprecated API check; it can override a Pod Disruption Budget that blocks a node drain (Microsoft)
    • Expected versions after it: Kubernetes 1.36 or later; clusters enrolled in LTS: 1.33 LTS or later (Microsoft)
    • How it moves: One minor version at a time until the cluster reaches a supported version (Microsoft)
    • Exact day: Not fixed: during or after the listed month, rate-limited by region, subscription and version (Microsoft)
    • Later versions: Each end of life then gets a 60-day grace period before these upgrades (Microsoft)
    • Can you opt out?: No (Microsoft)
    • Long-term support: Never automatic; you must enable it (Microsoft)
    • Clusters on unsupported versions: Upgraded by AKS from June 1, 2027 (Microsoft)

    You can stay on Azure Kubernetes Service (AKS) if you make the change. This page is for people who would rather leave.

    What Your product gives you

    Write two or three short lines here. Say what Your product does, who it is for, and what it costs. Use only facts you can show.

    How to move from Azure Kubernetes Service to Your product

    1. Save what you need from Azure Kubernetes Service. Keep a copy before you cancel anything.
    2. Import into Your product. Say which files you accept and how long an import takes.

    Tell readers the key date: June 1, 2027.

    Questions people ask

    If Your product has a direct answer to one of these, add it here. Keep it short and true.

    How to help new users settle in

    Send one short email. Say what changed, where to find you now, and what they need to do. Put the most important line first.

    If there is a date, send a short reminder a few days before it. Keep a copy of the list you sent it to.

    Sources

  5. 5 Search ideas to validate

    suggested, not measured Phrases people may search when a tool changes like this. We have no search volume data for them.

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