Linux Kernel 4.1.15 LTS Out Now with Btrfs, EXT4, and IPv6 Improvements

Linux kernel 4.1.15 LTS brings dozens of updates, starting with many improvements for the Btrfs, EXT4, Ceph, NFS, JBD2, and OCFS2 filesystems, and continuing with several updated drivers, especially for things like Firewire and networking (mostly USB and PHY).