| # Contributing |
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| We welcome contributions from everyone. However, please follow the following guidelines when posting a GitHub Pull Request or filing a GitHub Issue on the systemd project: |
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| ## Filing Issues |
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| * We use GitHub Issues **exclusively** for tracking **bugs** and **feature** **requests** of systemd. If you are looking for help, please contact our [mailing list](https://lists.freedesktop.org/mailman/listinfo/systemd-devel) instead. |
| * We only track bugs in the **two** **most** **recently** **released** **versions** of systemd in the GitHub Issue tracker. If you are using an older version of systemd, please contact your distribution's bug tracker instead. |
| * When filing an issue, specify the **systemd** **version** you are experiencing the issue with. Also, indicate which **distribution** you are using. |
| * Please include an explanation how to reproduce the issue you are pointing out. |
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| Following these guidelines makes it easier for us to process your issue, and ensures we won't close your issue right-away for being misfiled. |
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| ### Older downstream versions |
| For older versions that are still supported by your distribution please use respective downstream tracker: |
| * **Fedora** - [bugzilla](https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora&component=systemd) |
| * **RHEL-7/CentOS-7** - [bugzilla](https://bugzilla.redhat.com/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%207&component=systemd) or [systemd-rhel github](https://github.com/lnykryn/systemd-rhel/issues) |
| * **Debian** - [bugs.debian.org](https://bugs.debian.org/cgi-bin/pkgreport.cgi?pkg=systemd) |
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| ## Security vulnerability reports |
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| If you discover a security vulnerability, we'd appreciate a non-public disclosure. The issue tracker and mailing list listed above are fully public. If you need to reach systemd developers in a non-public way, report the issue in one of the "big" distributions using systemd: [Fedora](https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora&component=systemd) (be sure to check "Security Sensitive Bug" under "Show Advanced Fields"), [Ubuntu](https://launchpad.net/ubuntu/+source/systemd/+filebug) (be sure to change "This bug contains information that is" from "Public" to "Private Security"), or [Debian](mailto:security@debian.org). Various systemd developers are active distribution maintainers and will propagate the information about the bug to other parties. |
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| ## Posting Pull Requests |
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| * Make sure to post PRs only relative to a very recent git master. |
| * Follow our [Coding Style](CODING_STYLE.md) when contributing code. This is a requirement for all code we merge. |
| * Please make sure to test your change before submitting the PR. See the [Hacking guide](HACKING.md) for details on how to do this. |
| * Make sure to run the test suite locally, before posting your PR. We use a CI system, meaning we don't even look at your PR, if the build and tests don't pass. |
| * If you need to update the code in an existing PR, force-push into the same branch, overriding old commits with new versions. |
| * After you have pushed a new version, add a comment about the new version (no notification is sent just for the commits, so it's easy to miss the update without an explicit comment). If you are a member of the systemd project on GitHub, remove the `reviewed/needs-rework` label. |
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| ## Final Words |
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| We'd like to apologize in advance if we are not able to process and reply to your issue or PR right-away. We have a lot of work to do, but we are trying our best! |
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| Thank you very much for your contributions! |