The 6.15 kernel has been released

Linus has released the 6.15 kernel, asexpected.

So this was delayed by a couple of hours because of a last-minutebug report resulting in one new feature being disabled at theeleventh hour, but 6.15 is out there now.

Significant changes in 6.15 include smarter timer-ID assignment to makecheckpoint/restore operations more reliable, the abilityto read status information from a pidfd after the process in question hasbeen reaped, the PIDFD_SELFspecial pidfd value, nestedID-mapped mounts, zero-copy network-data reception via io_uring, The abilityto read epoll events via io_uring, resilientqueued spinlocks for BPF programs, guard-page enhancements allowing them to beplaced in file-backed memory areas and for user space to detect theirpresence, the once-controversial fwctlsubsystem, the optional sealing of somesystem mappings, and much more.

See the LWN merge-window summaries (part1, part2) and the in-progress KernelNewbies 6.15 page formore information.