Apache License 2.0 is not compatible with GPLv2 --> Update to GPLv3

[Peter Johansson]

As I understand this cartoon ​http://www.gnu.org/licenses/quick-guide-gplv3.html Apache License 2.0 is only compatible with GPLv3 and not GPLv2. Since we use apr, I suppose we are more or less enforced to upgrade to GPLv3, or?

[Jari Häkkinen]

Hm, if I remember correctly the Apache License was claimed (by gnu.org themselves) to be compatible with GPL 2 before version 3 showed up. Maybe they changed their mind? Or they try to convince people to change to GPL3?

I am part of several open source projects still allowing use of GPL v2. Before we make the change I'd like to understand the consequences of movng on to v3.

[Peter Johansson]

On ​http://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses they say

Apache License, Version 2.0

This is a free software license, compatible with version 3 of the GPL.

Please note that this license is not compatible with GPL version 2, because it has some requirements that are not in the older version. These include certain patent termination and indemnification provisions.

As I've said elsewhere one can use svndigest under version 2 of the License, or (at your option) any later version, so the consequences are not very dramatic from one side. From the other side I've read Stallman's article about version 3 and he claims it is mostly about patents and so-called tivoization. ​Why upgrade to GPLv3?

[Jari Häkkinen]

(In [693]) Fixes #339. Change to GPLv3.