The last couple of Linux kernel updates have been a bit of a circus, with Android merging in the 3.3 ring and graphics integration on a (noisy) 3.4 center stage. Version 3.6 of the open source kernel has less flashy, more serene features this time, with hybrid standby, a new file system and other esoteric networking and architectural features befalling the penguin. That sleep mode, which caches the RAM contents to a disk to prevent data loss, has been available for a while now on Windows and Mac machines and will be especially handy on Linux laptops. The so-called Btrfs file system has also been added (albeit in a developmental mode) along with Google’s experimental TCP Fast Open extension, additional network drivers, more virtualisation options and additional processor support. Sleepwalk to the source for the complete changelog.