1.1 is in NetBSD 0.8.
I have a copy of it if needed.
$ tail -4
/home/reed/book/bsd-history/archives/1990s/netbsd/NetBSD-0.8-EXTRACTED/usr/src/usr.bin/awk/ACKNOWLEDGMENT
Arnold Robbins kept me current on POSIX standards for AWK, and
explained some of the "dark corners".