As of this writing, 5,776 non-merge changesets have been pulled into the
mainline kernel for the 6.3 release; that is a bit less than half of the
work that was waiting in linux-next before the merge window opened. This
merge window is thus well underway, but far from complete. Quite a bit of
significant work has been pulled so far; read on to see what entered the
kernel in the first half of the 6.3 merge window.