Linux Kernel 3.18.52 includes a little bit of everything, starting with small improvements to the ARM, ARM64 (AArch64), MIPS, SPARC, x86, and PowerPC (PPC) hardware architectures, updated sound and networking stacks with various fixes to ALSA, 9p, IPv6, L2TP, RDS, SCTP, and packet scheduler, and a few enhancements to the CIFS, F2FS, EXT4, EXT2, Btrfs, 9p, Ceph, GFS2, JFFS2, OCFS2, NFS, ReiserFS, XFS, and HFS+ filesystems. The usual core kernel and mm changes are also present, and the driver stack has been updated with various improvements for the InfiniBand, ISDN, MD, media, MTD, networking (Ethernet (Intel e1000e, Mellanox MLX4 and MLX5), PHY), PCI, SCSI, TTY, and USB drivers.