After years of the spec being nice but the implementations being very basic, the module versioning and installation implementation in Rakudo is finally shaping up. I anticipate it getting pretty robust over the next 6 months. Imo FROGGS' day 11 advent article is poorly written but might be useful: http://perl6advent.wordpress.com/2013/12/11/day-11-installin...

Rakudo/MoarVM began running this month. As Larry Wall said a few days ago "failed 179 test files ... which ain't too shabby at this point" http://irclog.perlgeek.de/moarvm/2013-12-21#i_8029074

Afaik the Perl 6 book is not really being updated. Maybe this info is of interest to you: http://www.perlmonks.org/?node_id=1033899