Seven Sunday stable kernels

The
5.13.9,
5.10.57,
5.4.139,
4.19.202,
4.14.243,
4.9.279, and
4.4.279
stable kernel updates have been released. Each contains a small set of
important fixes. Users of 4.4 should note that 4.4.280
is already in the review process; it is due on August 10.