4.0 backwards incompatibility

[Chris Armstrong <radix@xxxxxxxxxxxxxxxxx>]

I just upgraded my Debian Unstable machine to offlineimap 4.0, and noticed
that it was incompatible with my "old" mail directories. Is there _no_ way I
can avoid having to re-download all of my mail? I'm on a slow link and have
a ton of mail, and really don't want to do this. Of course I don't mind the
config file changes. Are there any plans for a script, or something, that
converts whatever it needs to convert so that I don't have to re-download
all of my mail?

Thanks,

-- 
 Twisted | Christopher Armstrong: International Man of Twistery
  Radix  |          Release Manager,  Twisted Project
---------+     http://twistedmatrix.com/users/radix.twistd/