With the release of the half-baked 1.8.7 a few months back, and now 1.9.1 being called the "first stable version of the 1.9 series" I'm a little bit confused as to what "stable" means for Ruby now.

Is 1.9 still going to be considered a development series, not widely recommended for most apps until 2.0 is released? Or is that starting to gradually change?