Post Syndicated from corbet original https://lwn.net/Articles/972886/

Linus has released the 6.9 kernel.
“So 6.9 is now out, and last week has looked quite stable (and the
whole release has felt pretty normal).”
Significant changes in this release include
the ability to create pidfds for individual
threads,
the BPF arena subsystem,
the BPF token security mechanism,
truncate() support in io_uring,
support for the Rust language on 64-bit Arm systems,
weighted interleaving in the
memory-management subsystem,
the device-mapper
virtual data optimizer target,
initial FUSE passthrough support,
and more.

See the LWN merge-window summaries
(part 1, part 2) for more information.