Microsoft
Developer Blogs

Get the latest information, insights, and news from Microsoft.

Highlights

MicrosoftTeams image image

When Infrastructure Scales But Understanding Doesn't

We all know this, even if we don't like to admit it: modern infrastructure can scale infinitely, but human understanding doesn't. We've all seen it happen - organizations going from managing dozens of servers to thousands of containers, from deploying weekly to deploying hundreds of...
Read moreClick to read more about this post

Authentication Tokens Are Not a Data Contract

Authentication tokens exist to answer one question: is this caller authorized to do this? They are not intended to be a stable data interface, a schema you can depend on, or an input into application logic. If your application decodes tokens and reads claims from them, this is an...
Read moreClick to read more about this post

Latest posts

banner oldnewthing blue image
Nov 20, 2025
Post comments count11
Post likes count3

In the commit-on-demand pattern, what happens if an access violation straddles multiple pages?

Author Avatar
Raymond Chen
The access violation exceptions will continue until commit improves.
The Old New Thing
Migration of integration article image
Nov 20, 2025
Post comments count0
Post likes count0

Migrating from Microsoft Learn to aspire.dev

Author Avatar
David Pine
Learn how we migrated all Aspire docs from Learn to the new website aspire.dev learn
Aspire Blog
New Office Add-ins and Copilot Agents store
Nov 19, 2025
Post comments count0
Post likes count1

Ignite 2025 - What's new for Office Add-ins

Author Avatar
Office Extensibility team
Read about new and exciting features now available in the Office Add-ins ecosystem for Ignite 2025. Learn about platform updates, developer experience improvements, and store enhancements.
Microsoft 365 Developer Blog
supercharge your test coverage jpg image
Nov 19, 2025
Post comments count4
Post likes count8

Supercharge Your Test Coverage with GitHub Copilot Testing for .NET

Author Avatar
McKenna Barlow
Boost your testing workflow with GitHub Copilot testing for .NET, available now in Visual Studio. Automatically generate, build, and run high-quality unit tests for files, projects, or entire solutions.
.NET Blog
azd ai agent blog image
Nov 19, 2025
Post comments count0
Post likes count6

Announcing the azd AI agent extension: Publish Microsoft Foundry agents directly from your development environment

Author AvatarAuthor Avatar
Kristen,
Jeff
This post shares how to work with the new Azure Developer CLI (`azd`) agents extension.
Azure SDK Blog
agent 365 interop image
Nov 19, 2025
Post comments count0
Post likes count2

Microsoft Agent 365 Interoperability for Smart, Secure Productivity

Author Avatar
Nirav Shah
Agent 365 Interoperability equips any agent with apps and data to simplify human-agent workflows.
Microsoft 365 Developer Blog
azd release 11 25 image
Nov 19, 2025
Post comments count0
Post likes count0

Azure Developer CLI (azd) Nov 2025 - Container Apps (GA), Layered Provisioning (Beta), Extension Framework, and Aspire 13

Author Avatar
PuiChee (PC) Chan
This post announces the November release of the Azure Developer CLI (`azd`).
Azure SDK Blog
1 48