Stable D version?

[Tourist]

Hi guys,

I've been following the forums for a while. I'm interested in 
looking into D, but I understand that currently it changes often, 
and is not very reliable.
I've also read that there's a new release model planned, where a 
stable version of the language is released every year or two. Is 
that so? When would it take place?

What's holding you from releasing a version now and declaring it 
stable for e.g. a year?