Added prism54 support.
Removed unneeded modules. (Makes for a smaller install)
Had to patch orinoco for another card.
Used nfs4 over nfs3, related to older kernels.
Enabled multilun for use with most major multislot media card readers and scsi jukeboxes. (Why none of the precompiled kernels for download have it, I will never know. One of the most biggest issues for many.)
Even some entire kernel release levels can be a big bug. I remember the entire release of 2.6.9.rc1-final that my USB mp3 player was never reconginzed. 2.6.8 and earlier and 2.6.10 and current have always seen this device. Just never in 2.6.9. Did get it to work but had to modify the kernel.
Main reason is these precompiled kernels are fine for the average system, but for laptops and servers need a little more features and use of future equipment.
Possibleties are ended less.