Naive question about perl versions (LaTeXML)

[Bruce Miller]

Hi all;
   The portfile for LaTeXML (with the help
of mojca and others on this list) now has lines
to the effect:

PortGroup           perl5 1.0
perl5.branches      5.8 5.10 5.12 5.14 5.16 5.18 5.20

and

if {${perl5.major} ne ""} {
     depends_lib-append \
         port:p${perl5.major}-archive-zip \
         port:p${perl5.major}-file-which \
   ...

My understanding is that LaTeXML is thus
ready to run under "any" version of perl5.

But:
(1) the listing under available ports for LaTeXML
   shows dependencies on p5.16-archive-zip, etc.
and
(2) a user reported a problem when trying to install
LaTeXML that it depended on p5.12-archive-zip which was
obsolete, recommending p5.16-archive-zip.

Is the reason for (1) that 5.16 is currently the "default" perl,
and the reason for (2) that that user currently has perl 5.12
installed? (and thus should upgrade to perl 5.16)

Just checking that I understand what's going on;
I'm preparing to make a release 0.8.1 of LaTeXML
and want to get it right...

thanks;
bruce