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The Free Software Foundation released GNU General Public License, version 3 (GPLv3) yesterday.

FSF: Version 3 of the GNU GPL strengthens this guarantee, by ensuring that users can modify the free software on their personal and household devices, and granting patent licenses to every user. It also extends compatibility with other free software licenses and increases international uniformity.

One of the gaols of GPLv3 is to make it compatible with the Apache License 2.0.

Richard Stallman: GPLv3 is now compatible with the Apache 2.0 license

However, Sam Ruby—"Hey, I just might be “whomever”. :-)" of Apache Software Foundation—reacted negatively to the compatibility claim:

Ram Ruby: The GPL V3 license is compatible with the ASF V2 license in precisely the same way that blood type AB is compatible with blood type O.

Specifically,

Ram Ruby: Apache Software Foundation will not distribute code which has either a direct dependency on GPL licensed code, or will only meaningfully operate when GPL code is installed.

The license war continues.