# How to apply a license

This application is licenced under the GNU GPLv3 or any later version.

Nextcloud doesn't require a CLA (Contributor License Agreement).
The copyright belongs to all the individual contributors.

If you modify an existing file, please keep the existing license header as
it is and just add your copyright notice:

````
@copyright Copyright (c) <year> <your name> (<your email address>)
````

If you create a new file please use this license header:

````
/*
 * Nextcloud Talk application
 *
 * @author <your name>
 * Copyright (C) <year> <your name> (<your email address>)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 ````

Additionally we require a Developer Certificate of Origin (DCO), look
at [CONTRIBUTING.md][contributing] to learn more how to sign your commits.

[contributing]: https://github.com/nextcloud/talk-android/blob/master/CONTRIBUTING.md#sign-your-work