https://www.techpowerup.com/309722/the-new-beta-bios-of-gigabyte-700-600-series-motherboards-supports-new-gen-intel-core-cpus
 
GIGABYTE Technology, one of the top global manufacturers of motherboards, graphics cards, and hardware solutions, has released the Beta BIOS update for Intel 700/600 series motherboards to strengthen support for the new generation Intel Core processors. GIGABYTE has been working closely with Intel to provide users with optimal performance, compatibility, and user experiences. Along with the upcoming new generation Intel Core processors, GIGABYTE's R&D team has developed and validated the Beta BIOS code exclusively for Z790/B760/Z690/B660/H610 motherboards. This ensures a seamless platform upgrade for users once the new processors hit the market.

Users can easily update the BIOS with the latest Beta BIOS file using GIGABYTE's ＠BIOS, Q-Flash, or Q-Flash Plus technology. For the most recent Beta BIOS update, please visit the official GIGABYTE website. For more information, please visit the official GIGABYTE website.
 
Looks like GIGABYTE wants to be one of the 1st motherboard vendors to support the upcoming CPUs.