[Samba] Upgrading from Samba 4.0.1 to 4.1.6

[Jason Waters]

I have two servers in two different offices that are VPN's.  I have them
setup in a PDC/BDC setup.  I would like to upgrade to the latest version of
samba but feel like I need to do more than compile the latest version and
then click make install :)  I think I need to upgrade the database and a
couple of other things.  Is there a document somewhere that explains the
steps?

I'm compiling this on Ubuntu 12.04.

Thanks for your help.

Jason