The questionable legal activities of a former Linux kernel developer <http://www.theregister.co.uk/2017/10/18/linux_kernel_community_enforcement_statement/> have driven a bunch of senior kernel figures to issue a “Community Enforcement Statement” to try to put a stop to this sort of thing in the future. What’s interesting about this is their admission that the GPL 2.0 has “ambiguities … that no one in our community has ever considered part of compliance”. And to fix it, their Statement “adopts the same termination provisions we are all familiar with from GPL-3.0 as an Additional Permission giving companies confidence that they will have time to come into compliance if a failure is identified”. Do you remember back when GPL 3.0 came out, and Linus Torvalds and other senior kernel figures issued a statement claiming that they were quite happy with GPL 2.0, they had no intention of moving to GPL 3.0, which he quite publicly loathed? Seems like now they are slowly coming to a realization of the reasons why GPL 3.0 was created in the first place...