Exit took place Linux kernel version 5.1. Significant innovations:
- io_uring β new interface for asynchronous input/output. Supports polling, I/O buffering, and more.
- added the ability to select the compression level for the zstd algorithm of the Btrfs file system.
- TLS 1.3 support.
- Intel Fastboot mode is enabled by default for Skylake series processors and newer.
- support for new hardware: Vega10/20 GPU, many single board computers (NanoPi M4, Raspberry Pi Model 3 A+ etc), etc.
- low-level changes to the stack organization of loading security modules: the ability to load one LSM module on top of another, changing the loading order, etc.
- the ability to use permanent memory devices (for example, NVDIMM) as operational.
- The 64-bit time_t structure is now available on all architectures.
Message in LKML: https://lkml.org/lkml/2019/5/5/278
Source: linux.org.ru