I know there exits a lot of changes in the linux2.6
and i want to know what are the changes
related to architecture?

As mpc860T is a slow processor
Is it considerably slow for mpc860T on linux 2.6 ?

I came to know there are some bugs on mpc860T for linux2.6
Is there any bugs?

what version of linux(2.4/2.6) is good for mpc860T ?
regards
thank you.