There was no mention of such an upgrade in the notes. I didn't notice any differences. The auto notch filter still doesn't work right. It notches the carrier OK, but as soon as some one speaks, you can hear the tone modulate. Very annoying.
Flex has been in "Production Hell" for an extended period of time. Everyone involved deserves high praise for their exemplary effort. Launching two high end radios and a QRO amp concurrently is a phenomenal accomplishment. Hope everyone enjoys the new offerings.