Linux 5.12 has been released
Summary: This release allows to map an UID to a different one in a mount; it also adds support for selecting the preemption model at runtime; support for a low-overhead memory error detector designed to be used in production; support for the ACRN hypervisor designed for embedded systems; Btrfs initial support for zoned devices, subpage blocks sizes and performance improvements; support for eager NFS writes; support for a Thermal Power Management to control the surface temperature of embedded devices in an unified way; the NAPI polling can be moved to a kernel thread; and support for non-blocking path lookups. As always, there are many other features, new drivers, improvements and fixes.