[alsa-devel] Alsa driver compatible with 2.6.18 kernel

Hello all,   I have a 2.6.18 kernel and I am using 1.0.12rc1 alsa driver. I am facing some issues and would like to get a newer alsa driver. I cant change the linux kernel version. Do you know which is the latest alsa driver which is supported on linux 2.6.18 ? How do I find that out ?   Thanks Reetesh