Linus has released the 5.11 kernel, as
expected. “I know it’s Valentine’s Day here in the
US – maybe give this release a good testing before you go back and
play with development kernels. All right? Because I’m sure your SO
will understand.”

Headline features in 5.11 include
Intel SGX support,
a new system-call interception mechanism,
the seccomp() constant-action
bitmap optimization,
the internal kmap_local() API,
the epoll_pwait2() system call,
and much more.
See the LWN merge-window articles
(part 1,
part 2) and the (under development) KernelNewbies 5.11 page for
more information.

Source: LWN.net – The 5.11 kernel is out