Kernel release status [LWN.net]

The 5.17 kernel is out, released on March 20. Quoth Linus:

So we had an extra week of at the end of this release cycle, and I'm happy to report that it was very calm indeed. We could probably have skipped it with not a lot of downside, but we did get a few last-minute reverts and fixes in and avoid some brown-paper bugs that would otherwise have been stable fodder, so it's all good

Some of the significant features in this release include KCSAN support for the arm64 architecture, the bpf_loop() helper, improved ID-mapped filesystem mounts, the reference-count tracking infrastructure, a switch to BLAKE2s for the random-number generator, a rewritten network filesystem caching layer, straight-line speculation mitigation, and more. See the LWN merge-window summaries (part 1, part 2) and the KernelNewbies 5.17 page for more details.

Stable updates: 5.16.16, 5.15.30, 5.10.107, and 5.4.186 were released on March 19, followed by 5.16.17, 5.15.31, 5.10.108, 5.4.187, 4.19.236, 4.14.273, and 4.9.308 on March 23.