http://www.tesnexus.com/downloads/file.php?id=16513
The main idea for this version was to remove the City Defences as separate esp and put them directly in the cities themselves. They have been disabled by default so that they wont cause any problem to people who didn't want to use them to start with. They can be triggered by the usual console commands you can find on your player not the Better Cities in game or by activating the OBSE menu (if you use OBSE).
We also integrated the Bank of Cyrodiil in the IC Market so you wont need the original mod anymore. Be warn that you'll need to empty your account and deposit box from the original mod before removing it and that you'll need to keep Better Cities Resources.esm active at all time if you don't want to loose your money or items placed in the bank. There is no need to make clean saves from the master anyway even if you need a sometimes to do clean saves from the esp (though you shouldn't need to).
The CUO patches were updated to accommodate the integration of the City Defences.
@Quintus Sertorius: At the end of the readme for the complete one, and at the end of the description on the download page for the latest changes since version 4.4.0.