As of this writing, 7,233 non-merge changesets have been pulled into the
mainline repository for the 5.7 kernel development cycle — over the course
of about three days. If current world conditions are slowing down kernel
development, it would seem that the results are not yet apparent at this
level. As usual, these changesets bring no end of fixes, improvements, and
new features; read on for a summary of what the first part of the 5.7 merge
window has brought in.

Source: LWN.net – [$] 5.7 Merge window part 1