Linux kernel version 2.6.28 has been released and available for download. The new version includes following stable and new features:
a] ext4 file system - The ext4 filesystem can support volumes with sizes up to 1 exbibyte and files with sizes up to 16 TiB. ext4 removes ext3 64-bit storage limits and adds other performance improvements.
b] Graphics Execution Manager (GEM) - It is a a modern memory manager specialized for use in device drivers for graphics chipsets. It manages graphics memory, controls the execution context and manages the Non-Uniform Memory Access (NUMA) environment on modern graphics chipsets. The "xf86-video-intel" device driver will feature GEM integration.
c] Other features - Stable USB drivers, KVM, bug fixes and other stuff.