I often get email from someone reporting a bug in a module I've
written.  I email back, asking what version of the module it is,
what version of Perl on what OS, and sometimes what version of
some relevent third library (like XML::Parser).  They reply,
saying "Perl 5".  I say "I need the exact version, as reported
by "perl -v"".  They tell me.  And I say "I, uh, also asked about
the version of my module and XML::Parser [or whatever]".  They say
"Oh yeah.  It's 2.27".  "Is that my module or XML::Parser?"
"XML::Parser."  "OK, and what about my module's
version?"  "Ohyeah.  That's 3.11."  By this time, days have passed,
and what should have been a simple operation -- reporting the version
of Perl and relevent modules, has been needlessly complicated.

This module is for simplifying that task.  If you add "use
Module::Versions::Report;" to a program (especially handy if your
program is one that demonstrates a bug in some module), then when the
program has finished running, you well get a report detailing the all
modules in memory, and noting the version of each (for modules that
defined a $VERSION, at least).

• Igor Vlasenko
• Vitaly Lipatov

• perl-Module-Versions-Report