Linus has released the 5.7 kernel right on
schedule.
Headline features in 5.7 include
x86 split-lock detection,
thermal-pressure management,
frequency invariance in the load-tracking
code,
coexistence between BPF and realtime
preemption,
support for BPF security hook programs (formerly called the KRSI security module),
a new, Microsoft-blessed exFAT filesystem implementation, and more.
The final patch to be merged was this one deprecating
the long-standing 80-column limit for kernel source.

See the KernelNewbies 5.7 page for
lots of details.

Source: LWN.net – The 5.7 kernel is out