Some of the specific changes include dropping the old ppc architecture in favor of the new "PowerPC" architecture, Xen can handle saving and restoring virtual machines, an f-trace lightweight tracing framework has been merged, MMiOTrace has been merged, enclosure management support for SATA, and numerous other changes. The merging of MMiOTrace is something that the Nouveau developers have been after for a few releases. MMiOTrace allows users to reverse-engineer binary drivers by tracing memory-mapped I/O accesses to the hardware.
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via Twitter or contacted via MichaelLarabel.com.