Linux 4.19 released

Linux 4.19 has been released. This release adds support for the CAKE network queue management to fight bufferbloat, support for guaranteeing minimum I/O latency targets for cgroups, experimental support for the future Wi-Fi 6 (802.11ax-drafts), memory usage for overlayfs users has been improved, a experimental EROFS file system optimized for read-only use, a new asynchronous I/O polling interface, support for avoiding unintentional writes to an attacker-controlled FIFO or regular files in world writable sticky directories, support for a Intel feature that locks part of the CPU cache for an application, and many other improvements and new drivers. For more details, see the complete changelog.