Free. Cross-platform. Open source. A developer platform for building all your apps.
Supported on Windows, Linux, and macOS
Supported on Windows, Linux, and macOS
Celebrate 20 years of .NET throughout the month by attending multiple events.
Date: February 14, 2022
Time: 9:00 AM - 9:30 AM Pacific Time
Location: Tune in right here
Date: March 17, 2022
Location: Online
Details coming soon...
2022
The world celebrates the 20th anniversary of .NET on February 14. Join the party on Twitter by sharing your favorite .NET moments with
2021
The latest release becomes the fastest adopted version of .NET ever, with over 7,000 contributors outside Microsoft making more than 21,000 contributions. It includes C# 10, F# 5, and many new features to simplify code, iterate faster, and perform better.
2016
.NET Core 1.0 releases at Red Hat DevNation, showing how serious Microsoft is about embracing Linux and demonstrating its commitment to open source.
2014
The .NET Compiler Platform (Roslyn) is released as open source at Build in April and the .NET Foundation is founded. In November, the .NET Core project -a cross-platform, high-performance implementation- begins on GitHub.
2008
Microsoft releases the source code for ASP.NET MVC under MS-PL license. By 2012, it is relicensed under Apache 2.0 and becomes one of the first major open-source projects at Microsoft.
2005
F#, the first functional-based .NET programming language, is developed by Don Syme in Microsoft Research. It was originally released under a shared source license and then re-released under an open-source license (Apache 2.0) in 2010.
2002
This unified IDE includes the first .NET release that allows you to build Windows client (Windows Forms) and Web (ASP.NET) applications, supporting C# and Visual Basic.
2000
Microsoft unveils the vision and road map for its next generation of software and services, the Microsoft .NET platform.
The dotnet-bot is the mascot for the .NET community. Create your coding companion by modding the dotnet-bot and then share your creation with the world.
Your skills, code, and favorite libraries apply anywhere you use .NET.
.NET is open source and we are very thankful for the many contributions it receives from the community.
Our step-by-step tutorial will help you get .NET running on your computer.
Supported on Windows, Linux, and macOS
