Article: OS X 10.9.1 Update
Updated without any Problems from 10.9->10.9.1 on GA-Z68X-UD3H-B3.
The only changes in the Extension folder are in following kexts/bundles:
AppleHDA.kext
AppleIntelFramebufferAzul.kext
AppleIntelFramebufferCapri.kext
AppleIntelHD3000Graphics.kext
AppleIntelHD3000GraphicsGA.plugin
AppleIntelHD3000GraphicsGLDriver.bundle
AppleIntelHD3000GraphicsVADriver.bundle
AppleIntelHD4000Graphics.kext
AppleIntelHD4000GraphicsGLDriver.bundle
AppleIntelHD4000GraphicsVADriver.bundle
AppleIntelHD5000Graphics.kext
AppleIntelHD5000GraphicsGLDriver.bundle
AppleIntelHD5000GraphicsVADriver.bundle
AppleIntelHDGraphics.kext
AppleIntelHDGraphicsFB.kext
AppleIntelHDGraphicsGA.plugin
AppleIntelHDGraphicsGLDriver.bundle
AppleIntelHDGraphicsGLDriver.bundle
AppleIntelHSWVA.bundle
AppleIntelIVBVA.bundle
AppleIntelSNBGraphicsFB.kext
AppleIntelSNBGraphicsFB.kext
AppleIntelSNBGraphicsFB.kext
AppleIntelSNBVA.bundle
AppleKextExcludeList.kext
GeForceGA.plugin
GeForceTesla.kext
GeForceTeslaGLDriver.bundle
GeForceTeslaVADriver.bundle
NVDANV50HalTesla.kext
NVDAResmanTesla.kext
And only the AppleHDA.kext matters to me.
Waiting for toledo to update a patched AppleHDA.kext.
In the meantime you can use the patched one from 10.9.
(
http://www.tonymacx86.com/audio/112458-mavericks-audio-realtek-alc-applehda-guide.html)