For weeks already at Phoronix we have been covering the Linux 3.14 kernel changes quite in close detail and continuing to do so more than any other web-site as it pertains to Linux enthusiasts. For an overview of the top Linux 3.14 kernel changes read the Linux 3.14 kernel has many exciting features. In the next day or two I will also be writing a more at length summary on the major features of this next Linux kernel release plus various Linux 3.14 benchmarks.
Linus Torvalds' release announcement for Linux 3.14-rc1 can be read on the kernel mailing list.
The Linux 3.14-rc1 codename has nothing to do with "Pi", but is codenamed the Shuffling Zombie Juror.