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Re:Defragmenting Qt and Uniting Our Ecosystem by cbhl on Wednesday August 06, 2014 @11:08AM (#8142823)
Qt is licensed under GPL v3 and LGPL v2.1, but you can also buy a license if you want to use and/or modify Qt in a project without having to redistribute the whole thing under GPLv3 or redistribute your modified Qt under LGPL v2.1.

There's actually a lot of closed-source software you know of that uses Qt in some form: Autodesk Maya, Google Earth, Skype, and Spotify are just a few.

I'm not sure whether all of these teams use the commercial version (some may use e.g. the LGPL version) but it's probably not zero.

http://en.wikipedia.org/wiki/Qt_(software)#Software_using_Qt

Re:Defragmenting Qt and Uniting Our Ecosystem by jordigh on Wednesday August 06, 2014 @11:19AM (#8142886)
So they're back to selling exceptions again? I thought they had stopped when it was owned by Nokia.
Re:Defragmenting Qt and Uniting Our Ecosystem by milliams on Wednesday August 06, 2014 @11:32AM (#8142975)
The deal was that before Nokia Qt was GPL or commercial but after Nokia bought it they relicensed the open-source offering to LGPL. This obviously reduced the demand for the commercial version but there's still plenty of companies who would buy it for both license and support.
Re:Defragmenting Qt and Uniting Our Ecosystem by navlelo on Wednesday August 06, 2014 @11:28AM (#8142942)
The commercial business/licensing was sold off to Digia, which eventually bought the whole Qt division.
Re:Defragmenting Qt and Uniting Our Ecosystem by jordigh on Wednesday August 06, 2014 @11:38AM (#8143014)
Yes, I understand this, but Digia went back to GPL and back to selling GPL exceptions like Trolltech did originally?
Re:Defragmenting Qt and Uniting Our Ecosystem by toyg on Wednesday August 06, 2014 @11:57AM (#8143136)
Digia is doing the same thing Nokia did, which was the same thing Trolltech did. The only difference is that, since the Nokia takeover, the open source version is also available under LGPL. This has not changed under Digia.
Re:Defragmenting Qt and Uniting Our Ecosystem by Narishma on Wednesday August 06, 2014 @01:05PM (#8143480)
They never stopped selling commercial licenses, so there's nothing to go back to. The only thing that changed with Nokia is that they made it also available with an LGPL license.
Re:Defragmenting Qt and Uniting Our Ecosystem by milliams on Wednesday August 06, 2014 @11:52AM (#8143102)
No. it's still available under the LGPL.