Kernel Update- Implications of FC2 & FC3 Kernel Synchronization?

[David Curry]

Question from a neophyte struggling to better understand differences 
between fedora releases and between fedora release and update modes.

Kernel updates released today for both FC2 and FC3 have a common version 
number: 2.6.10-1.770 and are distinguishable only by the tailing release 
designators _FC2 and _FC3.  In past, there appeared a difference in 
kernel numbers as well.  Does the move to commonality of version 
numbering have any practical or functional significance for users of the 
older release?

This question is in part prompted by the yesterday's message thread, 
"fc3 with kernel 2.6.10 stresses hard disk".  2.6.10_FC2 kernels have 
been available for some time and I have been running them so the thread 
prompted the question as to whether the "stresses hard disk" phenomenon 
applied to FC2 as well as FC3.  (Release notes point out that Fedora 
Core 3 changes included "Kernel and e2fsprogs support for online growing 
of ext3 file systems.)

TIA to the gurus making the time to respond.