Building specific kernel revision with OE and Bitbake

HI All,

I know how to build a kernel with BitBake, but I've seen "some" kernel
revision (version/patches) is chosen by Bitbake. Probably this is
related to the Angstrom repository?
How to force BitBake to fetch and build the latest kernel revision
with all available patches? How to get a list of all available kernel

Many thanks in advance,