To answer your question the moarvm is mentioned in all the release announcements and in the compilation instructions and in most of the blogs.perl.org posts that I read. For example:
"This is the third post-Christmas (production) release of Rakudo Star and implements Perl v6.c. It comes with support for the MoarVM backend..."
"Deconfusion note: if you're just a regular Perl 6 user, you likely use and only ever heard of Rakudo Star, which is a distribution that includes the Rakudo Perl 6 Compiler, some modules, and the docs. This post details a release of that compiler only, which gets released more often than Rakudo Star. So please don't think there's a new release, if Star is all you use."
"This is the third post-Christmas (production) release of Rakudo Star and implements Perl v6.c. It comes with support for the MoarVM backend..."
"Deconfusion note: if you're just a regular Perl 6 user, you likely use and only ever heard of Rakudo Star, which is a distribution that includes the Rakudo Perl 6 Compiler, some modules, and the docs. This post details a release of that compiler only, which gets released more often than Rakudo Star. So please don't think there's a new release, if Star is all you use."