Versioned vs unversioned jarfile names?

I have a request filed here:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=145744
to supply version-less symlinks for the JDBC jarfiles that are
distributed in the Postgres RPMs.  Does anyone have a comment
on whether this is a good or bad idea?

I personally thought that it would be better to use names that aren't
totally versionless, but include some sort of major version number that
indicates API level, or something like that.  But I don't know what
would be appropriate.  Thoughts welcome.

            regards, tom lane