Here's a neat trick to find out what version of a Perl module is installed.
Let's try with
perl -MCarp\ 99999 -e 1 Carp version 99999 required--this is only version 1.42. BEGIN failed--compilation aborted.
The way this works is that we ask the runtime to load a very high version, and then wait for
perl to apologize that it only has current version x, in this case
Note the escaped space between the module and the version: