Sorry I'm a newb. But no instructions on how to update atleast I didn't see. Unknown I can just flash over cm7 I already have. But necessary to wipe 3 b4? Just making sure.
Applying this update is just like the previous release of CM. You need to be on 2.3.4, wipe the big three (data, cache and dalvik) and then install cm7 rc1 and the updated gapps. After installing cm you'll need to install the modified BSR.
If you're already on CM all you really need to do is download rc1 and the updated gapps. You don't necessarily even need to wipe anything, but it's recommended to wipe cache and dalvik (I personally wiped nothing and haven't had any problems, but it's only been a few hours since installing) and then you just install rc1 and gapps. After installing it will take several minutes for your phone to boot, this is normal since it has to rebuild the dalvik cache.
So it's essentially all the patches rolled into one update? Nothing else? I'm not trying to be rude, just looking for clarification.
Yup. This is essentially a maintenance update with a few subtle changes, which can be seen on the official CM7.2 changelog. Its not an update in the sense it must be applied over rc0, though. This can be installed independently right over a freshly rooted sbf or any other 2.3.4 rom.