usb4 backwards compatibility

What is USB4? How is it different from previous USB standards?
the next great version of usb is on the way of development. in early september 2019, usb implementers forum (usb-if) announced the specifications of usb4 that paved the way for fast usb connections comparable to the speed of thunderbolt 3.
What is US4? How is it different from previous USB standards?
the next great version of usb is on the way of development. in early september 2019, usb implementers forum (usb-if) announced the specifications of usb4 that paved the way for fast usb connections comparable to the speed of thunderbolt 3.