Post by Ottavio Caruso... or for all its derivatives, including Alpine or whatever it is
called today (it's a moving target)?
It's not a moving target. It's been "alpine" since 2007, when UWash
rewrote it to eliminate use of portions of the code that were
copyrighted so that it could be released under a public license. Eduardo
had been part of that team. UWash stopped maintaining alpine a few
months after releasing the rewrite.
Most of us are on Eduardo's fork of alpine; the two earlier forks are
abandoned projects. His version numbering doesn't overlap version
numbering used with the two earlier forks.
Eduardo generously gives his time maintaining alpine. We all thank him
for it.
If you had a specific question to ask, you'd receive an answer.