# Contributing to Homebrew First time contributing to Homebrew? Read our [Code of Conduct](https://github.com/Homebrew/brew/blob/master/CODE_OF_CONDUCT.md#code-of-conduct). ### Report a bug * run `brew update` (twice) * run and read `brew doctor` * read [the Troubleshooting Checklist](https://docs.brew.sh/Troubleshooting) * open an issue on the formula's repository ### Submit a version upgrade for the `foo` formula * check if the same upgrade has been already submitted by [searching the open pull requests for `foo`](https://github.com/Homebrew/homebrew-core/pulls?utf8=✓&q=is%3Apr+is%3Aopen+foo). * `brew bump-formula-pr --strict foo` with `--url=...` and `--sha256=...` or `--tag=...` and `--revision=...` arguments. ### Add a new formula for `foo` version `2.3.4` from `$URL` * read [the Formula Cookbook](https://docs.brew.sh/Formula-Cookbook) or: `brew create $URL` and make edits * `brew install --build-from-source foo` * `brew audit --new-formula foo` * `git commit` with message formatted `foo 2.3.4 (new formula)` * [open a pull request](https://docs.brew.sh/How-To-Open-a-Homebrew-Pull-Request) and fix any failing tests ### Contribute a fix to the `foo` formula * `brew edit foo` and make edits * leave the [`bottle`](http://www.rubydoc.info/github/Homebrew/brew/master/Formula#bottle-class_method) as-is * `brew uninstall --force foo`, `brew install --build-from-source foo`, `brew test foo`, and `brew audit --strict foo` * `git commit` with message formatted `foo: fix ` * [open a pull request](https://docs.brew.sh/How-To-Open-a-Homebrew-Pull-Request) and fix any failing tests Thanks!