Greg Kroah-Hartman has announced the release of the 5.12.4, 5.11.21, 5.10.37, and 5.4.119 stable kernels. These are enormous
updates, with changes throughout the kernel tree; users should upgrade.

Source: LWN.net – Stable kernels 5.12.4, 5.11.21, 5.10.37, and 5.4.119