Version 14.0, build 23A344 (same as RC2 published Sep 21st).
Sonoma drops official support for Kaby Lake platforms that remained supported in Ventura, Apple raising minimal requirements to Amber Lake and Coffee Lake platforms (with the exception of iMacPro1,1 as in Ventura). However, support for Kaby Lake graphics remain provided with all KBL kexts still present, this in order to ensure support for Amber Lake MacBook Air8,1. By extension, this means that graphics support for Skylake iGPUs can also be retained using those same KBL settings as used in Ventura. For other iGPUs, patches are available through OCLP tool to regain graphics acceleration.
Officially supported Intel platforms are now limited to :
iMac19,x (8th gen. Coffee Lake)
iMacPro1,1 (Skylake Xeon)
MacBookAir8,1 (8th gen. Amber Lake)
MacBookPro15,x (8th gen. Coffee Lake)
Macmini8,1 (8th gen Coffee Lake)
MacPro7,1 (Cacade Lake)
NB: macOS Big Sur is now officially unsupported.