As of March 2025, the Bond open-source project has ended.

• There will be no further activity in this project: no new features, no bug fixes, and, importantly, no security fixes.
• The Bond repositories on GitHub will remain, but they will be archived and read-only. You will still be able to access releases and source code, but you will no longer be able to open PRs or report issues.
• Bond's NuGet packages will remain on NuGet.org, but they will be unlisted and marked as unsupported.
• We will no longer monitor the StackOverflow tag "bond".
• The bond package on Hackage will be deprecated.

If you are a Microsoft team that uses Bond, please see https://aka.ms/bond for Microsoft-internal guidance.

The Bond team at Microsoft would like to thank the Bond open-source community for its support and collaboration these past ten years!

See the old README for details about how to build and use Bond.

The most comprehensive documentation of the Bond binary formats can be found in the files compact_binary.h, fast_binary.h, and simple_binary.h.

Microsoft has no affiliation with other open-source implementations of Bond. We cannot endorse any of them, and Microsoft will not provide any support.

This announcement does not affect Microsoft products that themselves use Bond. You can receive support for those products under their individual support policies. However, these products will not provide general support for Bond.