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.NET news, announcements, release notes, and more!

This repo contains benchmarks used for testing the performance of all .NET Runtimes

Experimental and pre-release tools for .NET MAUI

Code generators to speed up development.

This repo includes .NET Core implementations for various IoT boards, chips, displays and PCBs.

Check out NuGet packages adoption and what's trending on NuGet.

Source Link enables a great source debugging experience for your users, by adding source control metadata to your built assets

XAML Studio is a rapid prototyping tool for WinUI-based XAML that can then be easily copied into Visual Studio!

This repo contains the code to build the .NET deployment tools and installers for all supported platforms, as well as the sources to .NET deployment tools.

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

This is the codebase for Entity Framework 6 (previously maintained at https://entityframework.codeplex.com). Entity Framework Core is maintained at https://github.com/dotnet/efcore.

This repository contains the source code for .NET Monitor - a tool that allows you to gather diagnostic data from running applications using HTTP endpoints

A reference .NET application using AI for a customer support ticketing system

Code Signing CLI tool supporting Authenticode, NuGet, VSIX, and ClickOnce

Best practices for build reproducibility with MSBuild

Tools that provide common build infrastructure for multiple .NET Foundation projects.

Benchmarking infrastructure for applications

C# command line tool for running tests on Android / iOS / tvOS devices and simulators

A Kerberos implementation built entirely in managed code.

Simulate API failures, throttling, and chaos — all from your command line.

Infer.NET is a framework for running Bayesian inference in graphical models

ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.

A reference .NET application implementing an eCommerce site

EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

Cloud Native application framework for .NET

Core functionality needed to create .NET Core projects, that is shared between Visual Studio and CLI

Open XML SDK by Microsoft

.NET for Android provides open-source bindings of the Android SDK for use with .NET managed languages such as C#

A toolkit for developing high-performance HTTP reverse proxy applications.

This repo contains the client-oriented WCF libraries that enable applications built on .NET Core to communicate with WCF services.

Official container images for .NET

Provides a set of libraries which add service API versioning to ASP.NET Core Minimal APIs, Controllers, gRPC, OData, and Web API (Classic).

Next generation API for .NET

.NET for Apache® Spark™ makes Apache Spark™ easily accessible to .NET developers.

The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.

Watson is the fastest, easiest way to build scalable RESTful web servers and services in C#.

Powerful .NET library for benchmarking

Repository for skills to assist AI coding agents with .NET and C#