Greg Kroah-Hartman has announced another set of eight stable kernels: 5.16.4, 5.15.18, 5.10.95, 5.4.175, 4.19.227, 4.14.264, 4.9.299, and 4.4.301. These are relatively small updates
that, as usual, contain important fixes; users should upgrade.

Source: LWN.net – Another pile of stable kernel releases