Given that no one should be _actively_ writing 2.7 code, and that GH is trying to monetize this, I would think they could retrain the main model that excludes 2

Given that no one should be _actively_ writing 2.7 code, and that GH is trying to monetize this, I would think they could retrain the main model that excludes 2.7 code, and then allow people who need 2.7 to "pay for supporting 2.7" just like I'm guessing folks stuck on old platforms always do You raise a fascinating point about older platforms of other languages, too; Java has a super backward compat story, but woe be unto the coder who tries to name a variable "enum" nowadays