The 4.14 Linux kernel has been released

From LWN

The 4.14 kernel has been released after a ten-week development cycle. Some of the most prominent features in this release include the ORC unwinder for more reliable tracebacks and live patching, the long-awaited thread mode for control groups, support for AMD's secure memory encryption, five-level page table support, a new zero-copy networking feature, the heterogeneous memory management subsystem, and more. See the Kernel Newbies 4.14 page for more information. In the end, nearly 13,500 changesets were merged for 4.14, which is slated to be the next long-term-support kernel. For the maintainers out there, it's worth noting Linus's warning that the 4.15 merge window might be rather shorter than usual due to the US Thanksgiving Holiday.

As always, KernelNewbies has a good summary:

Summary: This release includes support for bigger memory limits in x86 hardware (128PiB of virtual address space, 4PiB of physical address space); support for AMD Secure Memory Encryption; a new unwinder that provides better kernel traces and a smaller kernel size; support for the zstd compression algorithm has been added to Btrfs and Squashfs; support for zero-copy of data from user memory to sockets; support for Heterogeneous Memory Management that will be needed in future GPUs; better cpufreq behaviour in some corner cases; Longer-lived TLB entries by using the PCID CPU feature; asynchronous non-blocking buffered reads; and many new drivers and other improvements.

--jeremy