Which auditd for which kernel?

We¹re on another linux distro, where 2.6.26 is the name of the game, and the changelog for auditd doesn¹t seem to specify what the required version of the kernel is for which version of auditd. What¹s the appropriate response? Step back to the 1.x arch of autid, although I note that the redhat build is 1.7.18 and the changelog doesn¹t seem to have been updated since 1.7.13? Thanks, Karl Katzke