Build Agentic UI with the new Blazor AI components for streamed content, tools, approvals, shared state, and generative experiences.

The new AG-UI .NET SDK enables .NET services to expose and consume interoperable agent endpoints using Microsoft.Extensions.AI.

Starting September 23, 2026, Microsoft is updating the author-signing certificate used for NuGet packages. Customers using trusted signer policies or certificate fingerprint verification should add the...

This release is about making everyday database workloads more predictable. It fixes a collection of issues that could appear under connection failures,...

Learn how to create a memory dump in C# to capture the state of your application for debugging purposes.

I am building a complete C# agent live, from a single call around an IChatClient to a production-ready, observable, governed agent, using the Microsoft Agent Framework harness in a 4-part Microsoft Reactor...

Take a tour through hundreds of performance improvements in .NET 11.

Share how your team uses .NET to solve real problems and help us bring more community stories to .NET Conf 2026 and other .NET channels.

If you deploy .dacpac files frequently, you know how much time is wasted when nothing has actually changed.

Learn how C# unions and closed hierarchies work with System.Text.Json across ASP.NET Core Minimal APIs, MVC, SignalR, Blazor, and OpenAPI.

.NET 11 Release Candidate 1 is available with improvements across libraries, runtime, SDK, MSBuild, NuGet, C#, F#, ASP.NET Core, .NET MAUI, and Windows Forms.

Submit your session proposal for the community-led .NET Conf 2026 Community Days by October 6, 2026.

A recap of the latest servicing updates for .NET and .NET Framework for September 2026.

When SQL Server Management Studio 21 arrived on the Visual Studio 2022 shell, it opened the door for third-party extensions in SSMS for the first time in years. But an extensibility model alone does…

MSTest source generation lets test projects use the same Native AOT and trimming deployment model as the applications they validate, while reducing reflection on the test execution path.

Details and links for each episode of the .NET Data Community Standup

When you need to move an entire database or move the objects in a database, bacpac and dacpac files often come up because of all of the tooling options to

Entity Framework Core Power Tools - reverse engineering, migrations and model visualization in Visual Studio & CLI - ErikEJ/EFCorePowerTools

Learn how Microsoft.Data.SqlClient configurable retry logic handles transient SQL Server failures with built-in retry policies, without requiring Polly.

How Uno Platform built two Model Context Protocol servers in C# so AI agents can ground themselves in real documentation and then see and drive a running cross-platform .NET app.

Microsoft.Data.SqlClient provides database connectivity to SQL Server for .NET applications. - dotnet/SqlClient

.NET Conf returns November 10-12, 2026, with three days of sessions, community, and the launch of .NET 11.

You built an agent with Microsoft Agent Framework and it works great on your machine. Now what? Turns out deploying it to production takes 1 NuGet package, 3 lines of C#, and 2 commands. Let's do it.

C# 15 ships with .NET 11. It adds union types, closed hierarchies, a preview of the updated unsafe model, and a few smaller changes that remove everyday ceremony.

What's Changed Allow editable parameter data types to prevent plan cache bloat by @ErikEJ with @Copilot in #220 Update querysettings.sql to avoid SET XACT_ABORT OFF issue by @JocaPC in #216 Enable...

Route requests across models and providers natively in Microsoft.Extensions.AI with RoutingChatClient, SemanticRoutingChatClient, and FailoverChatClient — new experimental primitives for content-based...

Get the most out of the latest models by providing the right level of instructions

I'm excited to announce that the T-SQL Analyzer is now available for Visual Studio Code! You can now catch T-SQL mistakes as you type, directly in the VS Code editor — no build step required.

Find out about the new features in .NET 11 Preview 7 across libraries, runtime, SDK, C#, ASP.NET Core, .NET MAUI, Entity Framework Core, F#, and Windows Forms.

A recap of the latest servicing updates for .NET and .NET Framework for August 2026.

Microsoft.Testing.Platform brings failures into GitHub Actions and Azure DevOps, uses pipeline history to separate regressions from flakes, and preserves usable reports when a test host crashes.

If you have ever deployed a SQL Database Project (.sqlproj) or a .dacpac with SqlPackage, you know the drill: you kick off a publish against an empty or near-empty database, grab a coffee, and wait.…

Build a live speech-to-text app in C# with Foundry Local, a compact Nemotron model, and local model lifecycle management.

NuGet API key durations will be reduced to 30 days starting August 17th. This change will significantly strengthen the integrity of the NuGet supply chain.

Meet the open-source polyglot testing agent that learns from a repository, writes unit tests, and checks that they build and pass.

MCP C# SDK v2.0 implements the 2026-07-28 specification with a stateless-first protocol, standardized HTTP headers, and Multi Round-Trip Requests for interactive tools, all while staying backward compatible.

SQL database projects are a fundamental tool for keeping your database in source control, tracking changes and collaborating on quickly evolving database

Meet the MSBuild Binlog Analyzer for VS Code - a Copilot-powered way to read MSBuild binary logs, explain and fix build failures with one click, compare builds, and catch regressions, backed by the Microsoft.AITools.BinlogMcp...

Long time EF Core contributor ErikEJ will show us his SQL Database Project Power Tools - enhancing the developer experience for SQL Database Projects in Visual Studio and SSMS. 🎙️ Featuring: Jiri…

Your database should be part of the same development process as the rest of your application, with source control and automation for validation and...

A free, open-source, hands-on course that walks you through modernizing a real legacy ASP.NET application all the way to .NET 10 using the GitHub Copilot modernization agent, step by step.

A recap of the latest servicing updates for .NET and .NET Framework for July 2026.

CoreCLR is now the only runtime for .NET MAUI mobile apps in .NET 11 Preview 6. Here is where we are, and why we need you to test today.

Find out about the new features in .NET 11 Preview 6 across runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, F#, and container images.

Modernize .NET applications in the GitHub Copilot app. Follow your upgrade from assessment through execution in an interactive upgrade canvas.

Building automated pipelines with your SQL database projects enables you to build a rich CI/CD ecosystem to ensure that your application is being deployed

A practical tour of the Model Context Protocol tools for .NET build diagnostics - the full Binlog MCP toolset, how those tools run inside a GitHub Actions workflow, and what the evaluation data says about...

.NET 8 and .NET 9 will both reach end of support on November 10, 2026. Learn what this means and how to upgrade to .NET 10 (LTS).