Since 2019 Linux has io_uring, and the last few releases expanded it. io_uring is a pretty exciting mechanism that is rapidly becoming the highest performance mechanism for doing syscalls in Linux. This is very important because spectre/meltdown mitigations made syscalls much slower; Linux really need truly async syscalls to regain some losses here. This also mirrors Google's new OS Fuschia, in which all syscalls are async.
Actually I use Arch. Now with that out of the way, we don't really need kernel releases mentioned on HN. If there is something noteworthy, then fine: mention it but simply noting a minor release is not news in itself.
That said, there are quite a few goodies in here. I see someone has already linked Kernel Newbies here already so I won't take up any more of your time.
It should probably be the Kernel Newbies entries that gets posted to HN, or a summary from LWN or the like. Linus announcements are for the kernel dev community.
(probably better to use lore.kernel.org/lkml instead of lkml.org too)
