The new update is here to introduce several improvements to the Btrfs, EXT4, and JBD2 filesystems, along with fixes for FS-Cache and the ARM, MIPS, and x86 hardware architectures, some networking improvements, especially for things like mac80211, IPv6, IPv4, IrDA (Infrared Data Association), and Reliable Datagram Sockets (RDS), as well as sound enhancements (mostly for Intel HDA).