While, if you want to see for a particular recent kernel that you have not installed yet, and you want to crosscheck,
see if ChangeLog-2.6* at http://www.kernel.org/pub/linux/kernel/v2.6/
contain something related to alsa updates.
 
For example http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.14
contains
   [ALSA] version 1.0.10rc1
and the other ChangeLog-2.6.14.x  files have no mention about further version updates