Neat Video & Neat Image community

Is there any change in the noise profible between v3 and v4 ?
Is it worth to rebuild noise profile with v4, or will the result will exactly be the same than v3 if i'm doing the exact same with v4 to build the noise profile ?
My sentence may not be very clear, i hope it will be understood

Yes, v4 profiles contain more information about the noise, so it is best to re-build (in fact there is no other choice as old profiles cannot be used in v4). v4 may deliver better (from the standpoing of noise reduction accuracy) results than v3 if the noise profile is built using the same frame and the filter settings are on their defaults.

Vlad