Linux kernel 4.1.28 LTS adds enhancements to the ARM, PowerPC (PPC), MIPS, SPARC, s390, ARC, and x86 hardware architectures, better support for the XFS, Btrfs, CIFS, NFS, NILFS2, and EXT4 filesystems, as well as the usual updated drivers, this time for things like ACPI, ATA, CLK, Crypto, DMA, GPU (mostly Intel i915, Nouveau, and Radeon), I2C, HID, hwmon, iiO, InfiniBand, input (mouse, touchscreen), MTD, PCI, PINCTRL, RTC, SCSI, SPI, TTY, USB, and Xen.