perldoc > new

Found in /usr/share/perl/5.38/pod/perlfaq1.pod
  How often are new versions of Perl released?
    Recently, the plan has been to release a new version of Perl roughly
    every April, but getting the release right is more important than
    sticking rigidly to a calendar date, so the release date is somewhat
    flexible. The historical release dates can be viewed at
    <http://www.cpan.org/src/README.html>.

    Even numbered minor versions (5.14, 5.16, 5.18) are production versions,
    and odd numbered minor versions (5.15, 5.17, 5.19) are development
    versions. Unless you want to try out an experimental feature, you
    probably never want to install a development version of Perl.

    The Perl development team are called Perl 5 Porters, and their
    organization is described at <http://perldoc.perl.org/perlpolicy.html>.
    The organizational rules really just boil down to one: Larry is always
    right, even when he was wrong.