The first release candidate of the Linux 3.7 kernel
was released on Sunday.
The Linux 3.7-rc1 announcement from Torvalds can be found on the kernel mailing list
where he goes over some of the new features.
In addition, read The Linux 3.7 Kernel Is Going To Be A Beast
and the many other Linux 3.7 articles
on Phoronix already since this next kernel release is packing a mighty number of interesting and worthwhile features.