[imp] "message not found"

[Kevin Konowalec]

A little while back I posted a question from a user saying that  
periodically if you were to click on a message in the inbox it would  
come back with "message not found".  Someone replied that this had  
been fixed in the CVS head.

My question is... what is the best or most common upgrade strategy  
for imp and horde in general?  Should we be continually upgrading to  
the CVS head with production systems or should we be sticking with  
official stable releases and just patching major issues until the  
next full release?  How important is it to be keeping current (if not  
bleeding-edge current)?

Incidentally... if there's a patch I can apply to fix the above  
problem please let me know...