The 4.3 kernel has been released
Linus has released the 4.3 kernel right on
the 63-day schedule. "So on the whole, this remains a rather calm
release cycle until the very end. And with the release of 4.3, obviously
the merge window for 4.4 is open, and let's keep our fingers crossed that
that will be an equally calm release." 4.3 includes the ability to
add BPF programs to user-space probes, the "PIDs controller" (an
anti-fork-bomb measure), the removal of the
ext3 filesystem, support for identifier locator
addressing, the ability to handle page
faults in user space, and more.