Linux kernel 4.4.1 LTS is a fairly normal maintenance build that promises to address various issues with the x86, AMR64 (AArch64), and PPC (PowerPC) hardware architectures, updates a few USB and networking drivers (mostly Ethernet), adds multiple sound enhancements, and improves the networking stack, especially for things like B.A.T.M.A.N. Advanced, Open vSwitch, IPv6, IPv4, Phonet, SCTP (Stream Control Transmission Protocol), as well as XFRM.