ANN: clap 3.0.0-rc.0

We are happy announce clap 3.0.0-rc.0 to collect final feedback before releasing 3.0. We are planning to give ourselves several weeks for this feedback window. Depending on how that feedback goes, 3.0 could be released slightly sooner or later. We expect minimal changes between now and then.

clap is a CLI argument parsing library used in cargo, ripgrep, and many other tools. You can see the CHANGELOG for highlights, breaking changes, and more. Head over to to see the latest documentation.

This has been an effort years in the making brought about by kbknapp, the many other maintainers and contributors, our beta testers who helped provide feedback and caught problems, and our sponsors.

Please give it a try and let us know how it works out!


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