Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

This repository, microsoft/go, contains the infrastructure Microsoft uses to build Go. The submodule named go contains the Go source code. By default, the submodule's remote URL is the official GitHub mirror of Go, golang/go. The canonical Git repository for Go source code is located at https://go.googlesource.com/go.

This project is not involved in producing the official binary distributions of Go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

This repository produces a modified version of Go that can be used to build FIPS 140-2 compliant applications. Our goal is to share this implementation with others in the Go community who have the same requirement, and to merge this capability into upstream Go as soon as possible. See eng/doc/fips for more information about this feature and the history of FIPS 140-2 compliance in Go.

The binaries produced by this repository are also intended for general use within Microsoft instead of the official binary distribution of Go.

We call this repository a fork even though it isn't a traditional Git fork. Its branches do not share Git ancestry with the Go repository. However, the repository serves the same purpose as a Git fork: maintaining a modified version of the Go source code over time.

This project follows the upstream Go Release Policy. This means we support each major release (1.X) until there are two newer major releases. A new Go major version is released every six months, so each Go major version is supported for about one year.

When upstream Go releases a new minor version (1.X.Y), we release a corresponding microsoft/go version that may also include fork-specific changes. This normally happens once a month. At any time, we may release a new revision (1.X.Y-Z) to fix an issue without waiting for the next upstream minor release. Revision releases are uncommon.

Each microsoft/go release is announced at the Microsoft for Go Developers blog. Check out the upstream golang-announce mailing list for a summary of the changes in each Go version.

There are a few additional support resources internal to Microsoft:

• Languages at Microsoft: Go.
• A Microsoft-internal email distribution list 📧 (instant join link) for release announcements.

We build the forked Go toolset with this list of OS/Arch combinations. To use a prebuilt copy of Go while targeting a platform that is not on this list, cross-compilation may be necessary.

• linux_amd64
• linux_armv6l
• linux_arm64
• windows_amd64

The following sections list the ways to get a build of the Microsoft fork of Go.

microsoft/go-images maintains and documents container images that are available on Microsoft Artifact Registry.

The Azure Linux distribution includes builds of this Go fork.

• In Azure Linux 2.0, the package msft-golang installs this fork.
• In Azure Linux 3.0, the golang package installs this fork.

Signed builds of Go for several platforms are available as zip and tar.gz files.

The microsoft/go GitHub releases include a source tarball file ending in .src.tar.gz. After downloading and extracting the tar.gz file, build it using the upstream instructions.

This repository wraps the upstream Go repository and includes build scripts that automate some aspects of the build process. See eng/README.md for more details about the infrastructure.

Prerequisites:

• PowerShell 6+
• Go install from source prerequisites
  • Exception: this repository's build script automatically downloads a bootstrap version of Go.

After cloning the repository and checking out the desired tag or commit, use the following build command:

pwsh eng/run.ps1 build -refresh

The resulting Go binary can then be found at go/bin/go.

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.

When you submit a pull request, a CLA bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.