I'm not a developper, but it occured to me that you should consider dropping
the support for client-server wire protocol v2.
I quote a comment I found in JDBC driver's code:
// NOTE: To simplify this code, it is assumed that if we are // using the V3 protocol, then the database is at
least7.4. That // eliminates the need to check database versions and maintain // backward-compatible code
here. // // Change by Chris Smith <cdsmith@twu.net>
This tells me that the v3 protocol appeared at 7.4, so there's no need to
support v2 in future database versions (starting with 8.3?). It would
simplify code in interfaces like JDBC too.
> > I see that there are two or three minor bug fixes in the REL7_3_STABLE
> > branch since 7.3.20. Rather than just leaving those to rot, maybe the
> > actual policy should be "only one more update after 8.3 comes out".
> >
> > Comments, opinions?
>
> Release 7.3.21 with and EOL addendum :). E.g; this is the last release
> of 7.3 and 7.3 is now considered unsupported.