Yes, huge thanks for atheros support in this kernel.
More changes in summary :
2.6.27 add a new filesystem (UBIFS) optimized for “pure” flash-based storage devices, the page-cache is now lockless, much improved Direct I/O scalability and performance, delayed allocation for ext4, multiqueue networking, an alternative hibernation implementation based on kexec/kdump, data integrity support in the block [...]

Click here to read more from atheros official support