Before changing his runlevel to "X'mas/holiday," Linus Torvalds posted the latest stable version of the Linux Kernel, version 3.7. The new kernel, among a ton of changes, fixes, and improvements, brings big gains for the ARM machine-architecture, including support for 64-bit memory with the newest ARMv8-laden SoCs.
The new kernel could form the foundation of the latest versions of Android that drive tablets and smartphones with copious amounts of RAM. The kernel follows a true multi-platform model to that effect. More than consumer devices, the need for large memory with ARM-based machines comes with the growth of ARM micro-servers, especially after Intel stepped up competition with low-Wattage x86 chips earlier this week.
In addition to ARM-friendliness, a new notable feature with Linux 3.7 is support for signed kernel modules, which will only support code approved by a software publisher or local netadmin.