Microsoft
Developer Blogs
Get the latest information, insights, and news from Microsoft.
Highlights
Agentic-Agile: Why Agent Development Needs Agile (Not Just Prompts)
"A bad system will beat a good person [or agent] every time" ~Dr. William Edwards Deming (with apologies)
I started vibe coding by writing prompts (often dictated into my phone), refining them with an agent in M365 Copilot, and creating handoff files to use with GitHub Copilot CLI. The...
Read moreClick to read more about this postStop prompt injection from hijacking your agent, new security capabilities now released within Agent Framework
Prompt injection is the #1 risk on the OWASP LLM Top 10, and most agents in production today defend against it with one of two heuristics: a defensive system prompt, or a hand-rolled allowlist. Neither is deterministic. Both fail silently the day someone slips a [SYSTEM OVERRIDE] line...
Read moreClick to read more about this postAnnouncing Agent Governance Toolkit MCP Extensions for .NET
Announcing a Public Preview .NET package that adds policy enforcement, startup tool scanning, fallback governance, and response sanitization to MCP servers with a single builder extension.
Read moreClick to read more about this postLatest posts
May 27, 2026
Post comments count1
Post likes count0
What's New for C++ Developers in Visual Studio 2026 (18.1 - 18.6)
Visual Studio 2026 versions 18.1 through 18.6 deliver a wave of improvements for C++ developers. For MSVC Build Tools, the v14.51 release is now generally available with runtime performance gains and improved C++23 conformance. We also introduced Sample Profile Guided Optimization to help...
C++ Team Blog
May 27, 2026
Post likes count0
Visual Studio Code 1.122
Learn what's new in Visual Studio Code 1.122 (Insiders)
Read the full article
VS Code Blog
May 27, 2026
Post comments count0
Post likes count0
I'm Starting a New Cosmos DB App. What Security Do I Actually Need?
Sudhanshu,
Iria
You just created a Cosmos DB account. The portal handed you two keys and a connection string, it worked, and you moved on. That's what most developers do, and it causes problems later.
This post is a guide for developers launching a new Cosmos DB app who want a secure default setup...
Azure Cosmos DB Blog
May 27, 2026
Post comments count0
Post likes count0
How AI coding agents actually use your technology
You ship an SDK, a CLI, an API, and developers use it. Now AI coding agents use it too, except they use it differently than humans do. Most of the time you have no idea what's actually happening between "developer types a prompt" and "agent generates code with your technology." Is the...
Microsoft for Developers
May 27, 2026
Post comments count0
Post likes count2
Introducing the Azure DocumentDB Blog
A dedicated home for MongoDB developers, MongoDB migrations, and modern document database development using Open Source on Azure
Today, we're excited to launch the new Azure DocumentDB blog — a dedicated destination for developers, architects, and organizations building...
Azure DocumentDB Blog
May 27, 2026
Post comments count0
Post likes count0
Deployment Operations, Requests and Queue
The PackageManager API submits requests to the deployment engine for processing. Each request represents an instruction for the deployment system to carry out a defined set of actions, collectively referred to as a deployment operation.
The operation associated with a request depends...
Inside MSIX
May 27, 2026
Post comments count0
Post likes count1
Sharing the result of a single Windows Runtime IAsyncOperation among multiple coroutines, part 1
Caching the result and knowing when the cache is valid.
The Old New Thing
May 26, 2026
Post comments count4
Post likes count3
Doing More with GitHub Copilot as a .NET Developer
Want to get more out of your GitHub Copilot experience? Here are some easy ways to get started.
.NET Blog
May 26, 2026
Post comments count0
Post likes count0
Give Your .NET MAUI Android Apps a Material 3 Makeover
Material 3 (a.k.a. Material You) support is now available for .NET MAUI apps on Android. Here is how to enable it, what changes today, and what is still on the way.
.NET Blog