While it looked like the Linux 3.9 kernel would be released this weekend
, a 3.9-rc8 release was warranted and is out this Sunday evening.
Linus Torvalds explained that he was hoping to release Linux 3.9 final this weekend, but there ended up being a surplus of issues that led him to tagging another kernel release candidate. In the end, Torvalds decided, "another week won't hurt."
The brief and rather uninteresting Linux 3.9-rc8 release announcement can be read on the kernel mailing list
For those not familiar with the forthcoming Linux 3.9 kernel, checkout Interesting Features, Changes In The Linux 3.9 Kernel