Just as significant to me is the UDH-only rear derailleur, which definitely has some pros and cons. The new Red AXS XPLR completely eliminates the hanger, mounting exactly like the SRAM ...
Today, SRAM rounds out the new Red group with the debut of the launch of the XPLR parts—13 speed and full mount, as promised—as well as a hugely-wide Zipp 303 XPLR wheelset, and a few other bits.