# runtime: Build the .NET Runtime, Libraries, and Host This repository profile is provided by osrepos.com, an open source repository discovery platform. Source: osrepos.com Repository profile: https://osrepos.com/repo/dotnet-runtime Generated for open source discovery and AI-assisted research. .NET Runtime is the source repository for building the .NET runtime, libraries, and shared `dotnet` host installers across supported platforms. It is for developers building, testing, or contributing to .NET itself, rather than a standalone application framework. GitHub: https://github.com/dotnet/runtime OSRepos URL: https://osrepos.com/repo/dotnet-runtime ## Summary .NET Runtime is the source repository for building the .NET runtime, libraries, and shared `dotnet` host installers across supported platforms. It is for developers building, testing, or contributing to .NET itself, rather than a standalone application framework. ## Topics - csharp - programming - cross-platform - dotnet-runtime - dotnet-libraries - dotnet-host ## Repository Information Last analyzed by OSRepos: Mon Oct 26 2026 20:45:28 GMT+0000 (Western European Standard Time) Detail views: 1 GitHub clicks: 0 ## Safety Notice OSRepos shares public repositories for knowledge and discovery only. Review source code, dependencies, licenses, and security implications before running or installing anything. ## Content ## Overview `dotnet/runtime` contains the code to build the .NET runtime, libraries, and shared `dotnet` host installers for supported platforms. It is the implementation behind .NET, intended for people working on the platform and its components, not just developers consuming .NET through its documentation or SDK. The repository also provides contribution and workflow guidance for building and testing the code, along with instructions for trying nightly builds. Applications built with .NET can target cloud, mobile, desktop, and IoT scenarios, as described by the project. ## Key Features - Source for the .NET runtime and its libraries. - Code for building shared `dotnet` host installers across supported platforms. - Contribution guidance describing the kinds of changes the project welcomes. - Workflow documentation covering how to build and test the repository. - Guidance for using nightly builds to test runtime and library changes in applications. - Private vulnerability reporting instructions through the Microsoft Security Response Center. - Links to .NET support policies, roadmap, API references, and source indexes. ## Use Cases - .NET contributors building and testing changes to the runtime or class libraries. - Runtime and library developers investigating platform behavior or implementation details. - Application developers who want to test their projects against nightly runtime and library builds. - Maintainers working on the shared `dotnet` host or .NET installation components. ## Our Take This is an actively maintained, foundational .NET repository with regular commits and releases, broad contributor participation, and fast reported issue and pull-request handling, but it is aimed at platform development rather than ordinary application setup. **Good fit if:** - You are developing or debugging the .NET runtime, libraries, host, or installation components. - You need to build and test changes against the repository's documented workflow. - You want to evaluate nightly runtime or library builds in your own .NET application. **Look elsewhere if:** - You want instructions for starting an application; the README directs users to the .NET getting-started guides and SDK downloads. - Your issue concerns another .NET project, such as ASP.NET Core, rather than the runtime, libraries, framework components, or `dotnet` installation. ## Project Health | Signal | Value | |---|---| | Status | **Active**: regular commits and releases | | Last commit | 2026-10-26 (today) | | Commits, last 90 days | 100+ | | Releases, last 12 months | 37 (latest v9.0.21, 2026-10-13) | | Contributors | 100+ (top contributor: 12% of commits) | | Issues closed, last 90 days | 19+ (typically closed in 1 day) | | Pull requests merged, last 90 days | 96 (typically merged in 1 day) | | Project age | 7 years | Checked on 2026-10-26 with the GitHub API. ## Project Facts - Language: C# - License: MIT - Stars: 18.4k - Forks: 5.7k - Topics: dotnet, hacktoberfest, help-wanted - Website: https://docs.microsoft.com/dotnet/core/ - Archived: no ## What You Need Detected in the repository: - C# (main language on GitHub) - Automated checks on GitHub Actions ## Getting Started Start with the [.NET getting-started guide](https://learn.microsoft.com/dotnet/core/get-started) to install and use .NET. To work on this repository, read its [workflow instructions](https://github.com/dotnet/runtime/blob/main/docs/workflow/README.md) and [contribution guide](https://github.com/dotnet/runtime/blob/main/CONTRIBUTING.md). See the [README](https://github.com/dotnet/runtime) for further links and guidance. ## License in Plain Words **MIT** (permissive). - Commercial use: yes - Modify and redistribute: yes - You must keep: the copyright and license notice - Share your changes: no A summary, not legal advice: the LICENSE file is what applies. ## Considerations This repository is the implementation of a broad platform, so building and contributing to it is different from installing the .NET SDK and using it to develop applications. The README points contributors to dedicated workflow instructions rather than providing a quick build command. The project is actively maintained, with regular releases and contributions from many people; its issue and pull-request handling is also active. Changes intended for other .NET ecosystem repositories should be filed there instead. Vulnerabilities should be reported privately through the [MSRC Researcher Portal](https://msrc.microsoft.com/report/vulnerability/new), not as public issues.