This NIP is not yet in main. Here is an overview of PRs referencing this NIP. 
using multiple independent kinds for community-scoped events OPEN @fiatjaf
Change kind of community post from 1 to 72 CLOSED @fiatjaf
Change NIP-72 new post request to kind:11 CLOSED @weex
support for community-exclusive posts CLOSED @vivganes
fix typos MERGED @mattn
merge nips 12, 16, 20 and 33 into nip 01 MERGED @fiatjaf