Linux 2.6.23 was released a few hours ago. See the kernelnewbies changelog lots of details.
In addition to all the upstream changes, gentoo-sources-2.6.23 (which will be in portage very soon) has some Gentoo-specific feature changes worth noting:
vesafb-tng replaced with uvesafb
Michal is the author of vesafb-tng, which is popular as it allows you to use higher frequency refresh rates on the VESA framebuffer to stop you getting headaches on CRT monitors.
Michal has always been first to admit that vesafb-tng was an ugly hack and has no future. He’s now able to refrain from insulting his own coding abilities though, as he has reimplemented the functionality in a way that isn’t an ugly hack.
uvesafb is the replacement. The fundamental difference is that much of the functionality has been moved out of the kernel into userspace, so the kernel doesn’t have to worry about the ugly details.
The big change on the inside means that it’s unfortunately not a direct switchover to uvesafb from vesafb-tng. There are installation instructions on the uvesafb project homepage.
In fact, the uvesafb code is so non-ugly that it has been accepted into the upstream Linux kernel for the 2.6.24 release. Thanks Michal!
fbsplash replaced by fbcondecor
Michal also authored fbsplash, a kernel patch to allow you to place a pretty splash image behind the framebuffer console.
Due to confusion in the naming, fbsplash has been renamed to fbcondecor (FrameBuffer CONsole DECORations). However, this is just a simple rename, so the migration path is not difficult. See Michal’s blog for further details.
speakup isn’t back yet
speakup is an in-kernel speech synthesizer for blind/hard-of-sight Linux users.
We dropped speakup for 2.6.22 as it was no longer compatible with the kernel. I was planning to revive it for 2.6.23 but I haven’t had time, so it will have to wait for 2.6.24.