Last paragraph of this article speaks of our favorite language

"JAGUAR has some other noteworthy Unix features outside the OS itself. I
was exceedingly pleased, for example, to see that Jaguar’s default
install includes the Ruby programming language; the latest Python is
part of the OS too. Unfortunately, Jaguar’s Perl is still at version
5.6.0, even though 5.8.0 was recently released. I hope Apple will
include the latest Perl in a future software update. In the meantime,
Apple has already posted instructions for installing it yourself. "

http://www.zdnet.com/anchordesk/stories/story/0,10738,2879107,00.html

-rich