Linux kernel 3.9 brings numerous breathtaking features, among which we can mention improved support for the F2FS (Flash Friendly File-System) filesystem for Samsung developers, improved ARM support, Zero-Power Optical device driver, audio/sound improvements, initial support for AMD Radeon HD 8000 series, Synopsys ARC700 CPU support, improved ARM SoC support, improved power management, faster LZO compression, experimental RAID5/6 support for the Btrfs filesystem, fixes EXT4 corruption bug, Google’s Goldfish, as well as new drivers, which bring support for more hardware.