Request: can we upgrade all bzr repositories' format to version 2a?

Hi all,
  this theme periodically reoccurs, I'm sorry to bring it up agan but
it's getting more annoying every passing day.
We are currently using a number of different formats for our bzr
repositories (0.92, 1.14, 2a..), which are not fully-compatible with
each other.
This is getting more annoying with each passing day (I'm the
mostly-hit person as I run multiple build trees, part on our servers,
and part on launchpad).

I know that there are backwards-compatiblity concerns which make
upgrading the repositories' format undesireable, but I believe that
format 2a has been around for quite a long time now, so these concerns
should matter less and less as times goes by.

So my request is, can we adopt bzr repository format 2a as a baseline
everywhere?

Thanks

-- 
    /kinkie