Besides the ARM64 improvements, Linux kernel 3.18.13 LTS updates an enormous amount of drivers, especially for ACPI (Advanced Configuration and Power Interface), Bluetooth, CLK, CPUFreq, CpuIdle, DMA, GPU (Intel i915 and Radeon), iiO, InfiniBand, IOMMU (Input/Output Memory Management Unit), networking (Ethernet, USB), PCI, SCSI, TTY, and USB.