Microsoft
Developer Blogs
Get the latest information, insights, and news from Microsoft.
Highlights
Explore union types in C# 15
C# 15 introduces union types — declare a closed set of case types with implicit conversions and exhaustive pattern matching. Try unions in preview today and see the broader exhaustiveness roadmap.
Read moreClick to read more about this postTake full control of your floating windows in Visual Studio
Make Visual Studio floating windows work perfectly with PowerToys FancyZones. Flip one option to get independent windows, better snapping, and less friction.
Read moreClick to read more about this postMCP Apps on Azure Functions: Quickstart with TypeScript
Learn how to build and deploy MCP (Model Context Protocol) apps on Azure Functions using TypeScript. This guide covers MCP tools, resources, local development, and serverless deployment with a practical weather app example.
Read moreClick to read more about this postLatest posts
Apr 8, 2026
Post comments count0
Post likes count0
Go 1.26.2-1 and 1.25.9-1 Microsoft builds now available
A new release of the Microsoft build of Go including security fixes is now available for download.
Microsoft for Go Developers
Apr 8, 2026
Post comments count1
Post likes count0
Introducing SQL MCP Server
SQL MCP Server gives enterprises a secure, feature-rich way to enable agents to access data. This is accomplished without exposing the schema, risking consistency, or relying on fragile natural language parsing. SQL MCP Server is a feature of Data API builder, so deployments have a proven...
Azure SQL Dev Corner
Apr 8, 2026
Post comments count0
Post likes count0
Give your Foundry Agent Custom Tools with MCP Servers on Azure Functions
Learn how to connect your MCP server hosted on Azure Functions to Microsoft Foundry agents. This post covers authentication options and setup steps to give your AI agent access to custom MCP tools.
Azure SDK Blog
Apr 8, 2026
Post comments count0
Post likes count0
GitHub Copilot for Eclipse Is Going Open Source
We’re excited to announce that the GitHub Copilot for Eclipse plugin is going open source under the MIT license and will be hosted on GitHub under the microsoft organization in the coming weeks.
By open-sourcing the project, we’re inviting the community to contribute,...
Microsoft for Java Developers
Apr 8, 2026
Post comments count0
Post likes count0
Building a Real-Time Multi-Agent UI with AG-UI and Microsoft Agent Framework Workflows
Multi-agent systems demo beautifully. Putting them in front of real users is another story.
In early prototypes, a terminal or a basic chat window is enough. But once agents start handing off to each other, pausing for approvals, or asking follow-up questions, those...
Microsoft Agent Framework
Apr 7, 2026
Post comments count0
Post likes count0
MCP as Easy as 1-2-3: Introducing the Fluent API for MCP Apps
Build MCP tools with rich UI experiences using the new Fluent API for MCP Apps in the .NET isolated worker. Configure views, permissions, and security policies with just a few lines of code.
Azure SDK Blog
Apr 7, 2026
Post comments count0
Post likes count7
MCP Apps now available in Copilot chat
Agents bring rich, app powered UI experiences directly into Microsoft 365 Copilot chat, via MCP Apps or the OpenAI Apps SDK. Read about what customers and partners are building.
Microsoft 365 Developer Blog
Apr 7, 2026
Post comments count0
Post likes count0
Your Migration's Source of Truth: The Modernization Assessment
Introducing GitHub Copilot Modernization and diving into the assessment report as part of cloud modernization process
.NET Blog
Apr 7, 2026
Post comments count13
Post likes count0
ASP.NET Core 2.3 end of support announcement
ASP.NET Core 2.3 will reach end of support on April 7, 2027. Learn what this means for your applications and how to upgrade to a modern supported version of .NET.
.NET Blog