zlacker

So they released the code open source and then were mad about someone using the source?

>>donatj+(OP)
Based on a face-value reading of the text above, it paints it as copyright violation.

That doesn't imply it's [entirely] true, but it certainly warrants some analysis. It's not clear what exactly happened without digging. As of today, one of the core files (`kernel.asm`[¹]) is clear about licensing, but the history may have been "not straightforward".

¹=http://websvn.kolibrios.org/filedetails.php?repname=Kolibri+...

>>donatj+(OP)
Depending on the license (caveat: I've not checked) the issue isn't the source being used it is the apparent attempt to claim copyright of the code the fourth is derived from (slapping their copyright messages in, with little/no indication that their contribution is only a small part of the work).

Even if the original license doesn't block this, it is still a bit of a dick move IMO.