Probably because Vincent asked to stop committing to master: http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg179711.html
That is not what I mean. I sent 2 patches for bugs worth to be fixed for LyX 2.1. Moreover you sent 2 patches for regression bugs. These should go in but Vincent did not reply.
It would make sense to cut a 2.1.0 stable branch now.
No, not before LyX 2.1 final was released, at least this was the rule for past releases.
What is supposed to happen next for 2.1.0?
Good question. regards Uwe