[Mailman-Users] Moving lists to new server - question on specific files

[Alfred Pope]

I've read dozens of posts concerning how to move mailman lists to a new mailman server and I have a pretty good idea what needs to be done.  I would like to get clarification on several details though.
 
1) I'm moving the lists from version 2.1.9 on Solaris 10 to version 2.1.18-1 on Ubuntu.  In an older post from Barry (which I cannot find now) he seems to indicate the list configuration files under mailman/lists/<listname>/ have not changed in these minor releases.  He didn't come right out and say it directly but that's what I got from the post.  I just wanted to clarify this.  Does the format or contents of the list config files change among these minor releases?
 
2) Also concerning the files under mailman/lists/<listname>/:  several different posters say to copy over the entire contents of mailman/lists/<listname>/ but other posters say the only "necessary" files to copy are the list config.pck files.   It makes sense that if you only copy over these minimal config files, you will loose the pending requests and subscription requests for each list.  Loosing the data in pending.pck and request.pck is OK with me as long as it doesn't break the list.  The list managers will be alerted in advance to clean up their lists.  Also, the current (old) list server contains config.db files for each list in addition to the config.pck files.  This is probably due to a previous migration in 2007.  I would rather not copy everything under these list directories.  I just need the list configuration and membership data.  Is copying the minimal config files a safe plan?
 
3) I don't plan on copying over the heldmsg and bounce files under mailman/data/  If the list managers don't clean up their lists before the move they will loose this data.  That's OK.  I just want to make sure not including those files won't break something down the road.  
 
Thank you for your time.
 
Rick