For those of you following the latest kernel developments, the Linux 2.6.31-rc4 kernel has just been released. This fourth release candidate for the Linux 2.6.31 kernel
brings fixes for some bigger bugs that were discovered in the past week. These bugs, which are now corrected in 2.6.31-rc4, impacted binutils, ccache, and the compiler. Beyond that there are some small bug fixes and other work going on within the Linux 2.6.31-rc4 kernel.
The Linus Torvalds release announcement for the Linux 2.6.31-rc4 kernel can be read here