Kernel release status
The current development kernel is 4.9-rc2, released on October 23.
Linus is asking for people to test one feature in particular: "
My favorite new feature that I called out in the rc1 announcement (the virtually mapped stacks) is possibly implicated in some crashes that Dave Jones has been trying to figure out, so if you want to be helpful and try to see if you can give more data, please make sure to enable CONFIG_VMAP_STACK."
The latest 4.9 regression report shows 14 known problems.
Stable updates: 4.8.3, 4.7.9, and 4.4.26, containing the "Dirty COW" fix, were released on October 20. 4.8.4, 4.7.10, and 4.4.27 followed on October 22. Note that 4.7.10 is the end of the 4.7.x series.
The 4.8.5 (140 changes) and
4.4.28 (112 changes) updates are in the
review process as of this writing; they can be expected on or after
October 28.