Quote "Why does the Adobe Labs ADOBE RAW not update RAW in LR4 but only CS6."
Because Lightroom is a complete stand alone program and does not require the ACR Plugin which is designed to be used in PS CS and Photoshop Elements. Lightroom has the equivalent of the ACR Plugin built in to the program and when you update Lightroom the program is up to date and you do not have do anything further.
LR 4.4RC is the equivalent of ACR 7.4RC in PS CS6.
Lightroom does not even require you to have any other Adobe Products installed on your system for it to function.
The situation where some users are having problems with the "edit in PS CS6" functionality is discussed in many threads in this forum and maybe if you discribe exactly what you have been experiencing you may get some advice from one of the helpful users from the forum.
