IEEE 802.11ay, Enhanced Throughput for Operation in License-exempt Bands above 45 GHz, is a follow-up to IEEE 802.11ad WiGig standard which quadruples the bandwidth and adds MIMO up to 8 streams.
[1][2] Development started in 2015 and the final standard IEEE 802.11ay-2021 was approved in March 2021.
It includes mechanisms for channel bonding and MU-MIMO technologies.
The 802.11ay standard is designed to run at much higher frequencies.
[1][10] Draft version 7.0 was released in December 2020 and the Final 802 Working Group Approval was received in February 2021.