Please go into detail, if you can. As the Linux kernel champions backwards compatibility it should not break userspace. And updates to userspace I imagine to be

Please go into detail, if you can. As the Linux kernel champions backwards compatibility it should not break userspace. And updates to userspace I imagine to be similar to Linux distros, just needing to update system/userspace libs and apps. The only time I see problems, is when the system-level software requires new hardware features that older models do not have.