Kernel release status
The current development kernel is 2.6.31-rc7, released on August 21.
"
But apart from a couple of bigger ones (OMAP GPIO/UART fixes and the radeon/kms changes), it's really pretty small. The bulk of those 290 files changed are basically few-liners in 213 commits (shortlog below), and in general we should have cut down the regression list another tiny bit.". The short format changelog is in the announcement, along with some other descriptions of changes and areas that need testing.
The current unresolved regression
count stands at 26, out of a total reported of 108.