"Linux-next is a somewhat strange base on which to try to
develop, though. It is built anew every day from over 100 subsystem
trees, each of which can, itself, change from one day to the next.
So linux-next is a moving target, just like the mainline is. But,
unlike the mainline, linux-next has no consistent or coherent
history. Every day's linux-next tree is a completely new creation
with a unique - and transient - history."
