why was libpq.so version bumped?

Hi!

subject says it all, I guess. There is hardly no difference between 7.3
libpq and 7.3.1 libpq. Why the version shift? Isn't the only thing
rectifying a version shift that there is a change in the API. Maybe there
is, but I cannot find it.

If there is a good reason, like say "security", maybe I can persuade the
FreeBSD port responsible to bring the port into the upcoming FreeBSD 5.0
release. The port freeze was introduced just before 7.3 was released, so
nothing new will be admitted unless it is a security fix, more or less,
which means FreeBSD 5.0 will ship with 7.2.3, which would be a
disappointment...

It is a PITA to relink every binary, so I guess I'll just keep the old lib
around. Still, I could use a good explanation why the version shift was
comitted.

Cheers,
Palle