D2 Blockers?

[dsimcha]

What are the current blockers to merging non-ancient versions of D2 into GDC?
 I've been quietly following the project and noticed that:

1.  It's actively being worked on.

2.  D1 is up to date.

3.  There were a bunch of issues w.r.t. druntime, but these seem to be resolved.

4.  A new version of D2 hasn't been merged in ~1 month, even though the
project is generally active.

5.  There was some concern about breaking the currently working 2.019.  IMHO
this is **completely** unwarranted, as support for such an outdated D2 version
is probably **completely useless** to just about everyone.  Probably no
non-trivial code that compiles for 2.019 will work on the latest version or
vice-versa, and the only code that's still written for 2.019 is really old,
unmaintained code that noone cares about.  IMHO until you're at least close to
the latest version, you should just break older versions with reckless abandon
to march towards getting recent, useful versions working.