- [Most active support forum users](https://discuss.ardupilot.org/u?order=post_count&period=quarterly)
- [Partners who contribute financially](http://ardupilot.org/about/Partners)
- [Partners who contribute financially](https://ardupilot.org/about/Partners)
## How To Get Involved ##
- The ArduPilot project is open source and we encourage participation and code contributions: [guidelines for contributors to the ardupilot codebase](http://ardupilot.org/dev/docs/contributing.html)
- The ArduPilot project is open source and we encourage participation and code contributions: [guidelines for contributors to the ardupilot codebase](https://ardupilot.org/dev/docs/contributing.html)
- We have an active group of Beta Testers especially for ArduCopter to help us find bugs: [release procedures](http://dev.ardupilot.org/wiki/release-procedures)
- We have an active group of Beta Testers especially for ArduCopter to help us find bugs: [release procedures](https://dev.ardupilot.org/wiki/release-procedures)
- Desired Enhancements and Bugs can be posted to the [issues list](https://github.com/ArduPilot/ardupilot/issues).
- Help other users with log analysis in the [support forums](http://discuss.ardupilot.org/)
- Help other users with log analysis in the [support forums](https://discuss.ardupilot.org/)
- Improve the wiki and chat with other [wiki editors on Gitter](https://gitter.im/ArduPilot/ardupilot_wiki)
- Contact the developers on one of the [communication channels](http://ardupilot.org/copter/docs/common-contact-us.html)
- Contact the developers on one of the [communication channels](https://ardupilot.org/copter/docs/common-contact-us.html)
## License ##
The ArduPilot project is licensed under the GNU General Public
License, version 3.
- [Overview of license](http://dev.ardupilot.com/wiki/license-gplv3)
- [Overview of license](https://dev.ardupilot.com/wiki/license-gplv3)