AGENTS
IMPORTANT SOFTWARE RELEASES
Updated December 18th 2025
This is a list of important software releases that an AI model might not be aware of.
- .NET 11 previews have been released monthly since February 2026
- Reference: What's new in .NET 11 Overview
- Reference: What's new in .NET 11 Runtime
- Reference: What's new in .NET 11 Libraries
- Reference: What's new in .NET 11 SDK
- .NET 10 was released in November 2025
- Reference: What's new in .NET 10 Overview
- Reference: What's new in .NET 10 Runtime
- Reference: What's new in .NET 10 Libraries
- Reference: What's new in .NET 10 SDK
- Visual Studio 2026 was released in September 2025
- Reference: Visual Studio 2026 Release Notes
- C# 14 was released in November 2025
- Reference: What's new in C# 14
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Welcome
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title: Welcome to .NET
description: Learn how to get started with the .NET family of technologies.
ms.date: 04/30/2026
ms.custom: "updateeachrelease"
---
Welcome to .NET
See Get started with .NET to learn how to create .NET apps.
You can build many types of apps with .NET, such as cloud, IoT, and games, using free cross-platform tools. Your apps can run on Android, iOS, Linux, macOS, and Windows. Deploy apps to servers or desktops and publish to app stores for deployment on mobile devices. .NET is accessible to students and hobbyists, and all are welcome to participate in a lively international developer community and make direct contributions to many of the .NET technologies.
News
For news about .NET, check the following blogs:
- .NET Blog
- The Visual Studio Blog
Also follow the latest .NET events:
- .NET Conf
- Microsoft Ignite
- Microsoft Build
For information about the latest features added to the .NET implementations and supported languages, see the following articles:
- What's new in .NET 11
- What's new in C# 15
- What's new for Visual Basic
Documentation
This documentation covers the breadth of .NET across platforms and languages. You can get started with .NET and its languages in any of the following sections:
- .NET fundamentals
- .NET Framework Guide
- C# Guide
- F# Guide
- Visual Basic Guide
- ML.NET Guide
- .NET Application Architecture
Additionally, you can browse the .NET API reference.
Videos
Explore videos on web, mobile, desktop, C#, machine learning, containers/Docker, data access, and more:
Open source
This documentation is completely open source. You can contribute in any way you like, from creating issues to writing documentation. Additionally, much of .NET itself is also open source. The following list shows the main .NET GitHub repositories:
- .NET runtime
- .NET SDK and analyzers
- .NET extensions
- ASP.NET Core
- Roslyn (C# and Visual Basic) Compiler Platform and IDE Tools
- F# Compiler and IDE Tools
- Windows Forms
- WPF
- WinUI
- WindowsAppSDK
You can join other people who are already active in the .NET community to find out what's new or ask for help.
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CONTRIBUTING
Contributing
Thank you for your interest in contributing to the .NET documentation!
We have moved our guidelines into a site-wide contribution guide. To see the guidance, visit the Microsoft Docs contributor guide.
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SECURITY
Security
Microsoft takes the security of our software products and services seriously, which includes all source code repositories managed through our GitHub organizations, which include Microsoft, Azure, DotNet, AspNet, Xamarin, and our GitHub organizations.
If you believe you have found a security vulnerability in any Microsoft-owned repository that meets Microsoft's definition of a security vulnerability, please report it to us as described below.
Reporting Security Issues
Please do not report security vulnerabilities through public GitHub issues.
Instead, please report them to the Microsoft Security Response Center (MSRC) at https://msrc.microsoft.com/create-report.
If you prefer to submit without logging in, send email to [email protected]. If possible, encrypt your message with our PGP key; please download it from the Microsoft Security Response Center PGP Key page.
You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your original message. Additional information can be found at microsoft.com/msrc.
Please include the requested information listed below (as much as you can provide) to help us better understand the nature and scope of the possible issue:
* Type of issue (e.g. buffer overflow, SQL injection, cross-site scripting, etc.)
* Full paths of source file(s) related to the manifestation of the issue
* The location of the affected source code (tag/branch/commit or direct URL)
* Any special configuration required to reproduce the issue
* Step-by-step instructions to reproduce the issue
* Proof-of-concept or exploit code (if possible)
* Impact of the issue, including how an attacker might exploit the issue
This information will help us triage your report more quickly.
If you are reporting for a bug bounty, more complete reports can contribute to a higher bounty award. Please visit our Microsoft Bug Bounty Program page for more details about our active programs.
Preferred Languages
We prefer all communications to be in English.
Policy
Microsoft follows the principle of Coordinated Vulnerability Disclosure.
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