Are Their Any Live Kernel Patches in Debian?

[Chime Hart <chime@hubert-humphrey.com>]

Hi All: A friend of mine who seems to love-and-follow Ubuntu asks me if Debian 
has any live kernel patches, where you wouldn't need to boot the system? I am 
in Debian SID-and-would `absolutely love an option such as that. Thanks so much 
in advance
Chime