POP was written in 1999 The last Unix release with people from the the Lab was UnixWare 7.1 (1999), the last from AT&T in 2001. Anything else is not Unix. We

POP was written in 1999 The last Unix release with people from the the Lab was UnixWare 7.1 (1999), the last from AT&T in 2001. Anything else is not Unix. We know Rob wrote Utah 2000 in that year. That's 15 years ago.