[CentOS] "Point Releases" Question

Mon Sep 14 14:51:42 UTC 2009
Jorge Fábregas <jorge.fabregas at gmail.com>

Hello everyone,

Let say 5.4 goes out today;  If I fully update (today) my 5.2 system...will it 
be equivalent to 5.4 (all RPM packages with same version/release number?)? 

Or is it possible for the new point release to include NEW packages that 
weren't on the base relase (in this case CentOS 5)?

Thanks,
Jorge