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AKS Releases – Weekly Update (2026-03-22 to 2026-03-29)

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AKS Releases – Weekly Update (2026-03-22 to 2026-03-29)

The latest AKS release notes with AI-generated summaries of breaking changes, key features, and good-to-know information.

Release Notes – 2026-03-05

📅 2026-03-11 		View Release ↗

Monitor the release status by regions at AKS-Release-Tracker. Announcements Azure Kubernetes Service support for Flatcar Container Linux for AKS (preview) will be retired on 8 June 2026, transition to a supported alternative by that date. From now to 7 June 2026, you can continue to use Flatcar Container Linux for AKS (preview) on Azure Kubernetes Service without disruption. Starting on 8 June 20…

Release 2026-02-08

📅 2026-02-17 		View Release ↗

This release emphasizes the retirement of Windows Server 2019 and introduces Kubernetes patch versions.

❌ Breaking Changes

  • Windows Server 2019 will be unsupported after March 1, 2026.

🔑 Key Features

  • Kubernetes patch versions 1.34.2, 1.33.6, and 1.32.10 are now available.
  • Managed GPU profiles are introduced for better resource management.

💡 Good to Know

  • Transition to Windows Server 2022+ is necessary before retirement.
  • Refer to the AKS-Release-Tracker for monitoring release status.

Release 2026-01-04

📅 2026-01-09 		View Release ↗

The release introduces Ubuntu 24.04 and highlights the end of support for Azure Linux 2.0.

❌ Breaking Changes

  • Azure Linux 2.0 will no longer receive security updates after November 30, 2025.

🔑 Key Features

  • Ubuntu 24.04 will be the default OS starting in Kubernetes v1.35.
  • CIS Kubernetes Benchmark results are now published for AKS.

💡 Good to Know

  • Migrate to a supported Azure Linux version to avoid issues.
  • Detailed CIS reports are available in the documentation.

Release 2025-10-12

📅 2025-10-17 		View Release ↗

This release emphasizes the retirement of Ubuntu 18.04 and the introduction of Ubuntu 24.04 as the default OS.

❌ Breaking Changes

  • Support for Ubuntu 18.04 will be removed, affecting scaling operations.

🔑 Key Features

  • Ubuntu 24.04 is now the default OS for AKS.
  • Kubernetes patch versions 1.34.2, 1.33.6, and 1.32.10 are available.

💡 Good to Know

  • Transition to Windows Server 2022+ is required before March 1, 2026.
  • Refer to the AKS-Release-Tracker for release status.

Release 2025-09-21

📅 2025-09-26 		View Release ↗

The release includes deprecation notices for Kubernetes version 1.31 and introduces version 1.34 in preview.

❌ Breaking Changes

  • Standard support for Kubernetes version 1.31 will end on November 1, 2025.
  • InPlaceOrRecreate feature gate for Vertical Pod Autoscaling will be enabled in version 1.34.

🔑 Key Features

  • Kubernetes version 1.34 is now available in preview.
  • Vertical Pod Autoscaler components will have 2 replicas by default in version 1.34.

💡 Good to Know

  • Refer to the version support policy for upgrade guidance.
  • Migration to Long Term Support is recommended for version 1.31.

Full tracker with releases tab: Azure Container Services Docs Tracker

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Categories: weekly docs updates

Pixel Robots.

I’m Richard Hooper aka Pixel Robots. I started this blog in 2016 for a couple reasons. The first reason was basically just a place for me to store my step by step guides, troubleshooting guides and just plain ideas about being a sysadmin. The second reason was to share what I have learned and found out with other people like me. Hopefully, you can find something useful on the site.

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