Upgrade - 1

2025 (6)

December (1)

k8s: Avoiding Zombie Cluster Members When Upgrading to etcd v3.6

Kubernetes Official Blog

2025-12-21

Upgrade to etcd v3.5.26 or later before moving to v3.6 to let etcd auto-sync membership data (v3store) from the legacy v2store and prevent removed nodes from reappearing as "zombie" members that can make the cluster inoperable.

November (1)

azure: Retirement: Support for Python 3.10 ends on October 1st, 2026

Azure Updates

2025-11-14

Microsoft Azure will end extended support for Python 3.10 on October 1, 2026; apps on App Service will keep running but will no longer receive security updates or customer support.

October (2)

azure: Retirement: Support for Node.js 20 ends on April 30, 2026 – upgrade your apps to Node.js 22

Azure Updates

2025-10-30

Azure Functions will stop supporting Node.js 20 on April 30, 2026. Apps running on Node.js 20 will continue to run, but they will no longer receive security fixes or performance updates; you should plan and perform an upgrade to Node.js 22 beforehand.

dotnet: Upgrading to Microsoft Agent Framework in Your .NET AI Chat App

.NET

2025-10-23

This DevBlogs post provides a step-by-step guide to upgrading a .NET AI chat app to the Microsoft Agent Framework to improve architecture, enable better tool integration, and add intelligent reasoning features.

September (2)

aks: Release 2025-09-21

Release notes from AKS

2025-09-27

AKS release v20250921 includes new previews and GA features, multiple deprecations and retirements, security and component upgrades, bug fixes, and several behavioural changes. Important actions: upgrade clusters from deprecated Kubernetes/Azure Linux versions, migrate deprecated add-ons, and review node pool and networking defaults to ensure compatibility.

azure: [Launched] Generally Available: Upgrade existing Azure Gen1 VMs to Gen2-Trusted launch

Azure Updates

2025-09-04

Azure announced general availability of the ability to upgrade existing Gen1 virtual machines to Gen2-Trusted Launch. The capability enables Trusted Launch on previously deployed Gen1 VMs to improve foundational VM security.