## How to contribute to Kill Bill

**Do not open up a GitHub issue before reaching out to our [Mailing-List](https://groups.google.com/forum/#!forum/killbilling-users)**. GitHub issues are primarily intended for tracking bug reports and fixes by the core team.

#### **Did you find a bug?**

In your [Mailing-List](https://groups.google.com/forum/#!forum/killbilling-users) post, specify:

* Step by step description on how to reproduce the issue
* [Account data and system dump](http://docs.killbill.io/0.19/debugging.html#_seeking_help) via KPM of an affected account

#### **Do you intend to add a new feature or change an existing one?**

Do not open an issue or pull request on GitHub until you have collected positive feedback about the change on the [Mailing-List](https://groups.google.com/forum/#!forum/killbilling-users).

When submitting code, make sure to add [new tests](http://docs.killbill.io/0.19/development.html#_navigating_the_kill_bill_codebase).

#### **Do you want to contribute to the Kill Bill documentation?**

Open a pull request on GitHub in the [killbill-docs](https://github.com/killbill/killbill-docs) repository.
