I will update the following folder for the updates (from official 0.197 to the next official release 0.198):
http://bda.retroroms.net/downloads/mame/update/
mirror: https://mega.nz/#F!KMkCxJjD!mF5BpL72XimK-AKwWcAFtQ
Don't search/post here for stuff that is already added to 0.197 or earlier!
Note: Remember that this update folder does not contain complete sets! "Full MAME 0.197" + "update" -> rebuild -> "Full MAME 0.197rXXX"