Of course not. What gives you the impression that this is the case? There will be a Perl 6.1 with features not present in Perl 6.0 in the same way that Perl 5

Of course not. What gives you the impression that this is the case? There will be a Perl 6.1 with features not present in Perl 6.0 in the same way that Perl 5.12 has features not present in Perl 5.10. If you meant to ask "Why not release a cut-down version of Perl 6.0 several years ago and iterate on that so you could be up to Perl 6.5 or something by now?" the answer is more complex. First, the most necessary feature of Perl 6 to allow for in place upgrades without falling into the morass of backwards compatibility that slows down the development of Perl 5 was not yet ready. That's a difficult problem and one you don't get many chances to do over. Second, none of the implementations were mature enough to recommend for general purpose use. (That's as much due to internal strife in Parrot as anything else.)