Wouldn't it make more sense to call it 1.9.1? Then there'd be a predictable link between 1.(9+x).y and 2.x.y.

Now, according to the post, 1.11 will have feature parity with 2.1. Will 1.12 be equivalent to 2.1.1 (assuming there is one) or 2.2? It seems needlessly confusing.