By the end of the 5.7 merge window, 11,998 non-merge changesets had
been pulled into the mainline repository for this development cycle. That
is 1,218 more than were seen during the 5.6 merge window; it would
appear that current world events have not succeeded in slowing down the
kernel community — at least, not yet. The latter half of the merge window
tends to see more fixes and fewer new features, but there are still a
number of interesting things that showed up after the first-half summary was written.

Source: LWN.net – [$] 5.7 Merge window part 2