@evan @julian @darius @dmitri IMHO what's best for fellow implementers and end-users, and most fair to those who took risk to implement the specification as agreed upon, is:
WE DO NOT BREAK USERSPACE[0]
Linus' diction in that footnote is not great, but the principle is. It stands up for all implementers, not just rich/big ones. That's leadership in protocol development. Instead some of our leaders have not only been breaking userspace, but doing it for hire.
[0]: https://lore.kernel.org/all/CA+55aFy98A+LJK4+GWMcbzaa1zsPBRo76q+ioEjbx-uaMKH6Uw@mail.gmail.com/

