Apache License 2.0

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Apache License
Apache-icon.png
The Apache Software Foundation logo
AuthorApache Software Foundation
Latest version2.0
PublisherApache Software Foundation
PublishedJanuary 2004
Debian Free Software Guidelines compatibleYes
FSF approvedYes
Open Source Initiative approvedYes
GPL compatibleOnly version 2.0 is compatible with only GPLv3.
CopyleftNo
Linking from code with a different licenceYes
Websitewww.apache.org/licenses

The Apache software license is a very permissive free software license published by the Apache Software Foundation. It is very similar to the GNU General Public License. It allows end-users to use the software for any purpose, make modifications and distribute original or modified versions under the same license terms.

The Apache Software Foundation publishes most of the software it makes under the Apache License v2.0. The license is also used by a large number of other free software projects.

The Android operating system is probably the biggest software project licensed under the Apache License 2.0.

Compatibility

The Free Software Foundation and the Apache Software Foundation have agreed that the Apache License 2.0 is compatible with the GNU General Public License Version 3. Code licensed under the Apache License v2 can be merged into projects licensed under the GNU GPL v3, but it does not work the other way around. Previous version of the Apache license are not compatible with the GNU GPL.

The Apache License 2.0 is not compatible with GNU GPL v1 and v2.

Links

The full license text is available at www.apache.org/licenses/.