I can't even be sure if it's relative to the patch, but right after I patched my vB, my admin vbcmps doesn't appear to be working. The front end appears to be ok, but when I login to my admincp and select any option from the vBa CMPS menu, I instantly get a "The Page Cannot Be Found" error."
So I upgraded the proper way and then even tried to launch vbacmps_install.php -- nothing. Same error. Everything else works great.