You only use optical cables (TV to receiver) and analog speakers. The update offers nothing for you and introduces a 0.1% risk of failure.
You use HDMI ARC, Bluetooth streaming, a PS5, an Xbox, or any 4K HDR source. denon avrx520bt firmware update top
By: Home Theater Tech Desk
However, to keep that performance seamless, you need to stay on top of maintenance. The phrase is searched by thousands of users each month—often because their Netflix audio cuts out, their HDMI ARC stops syncing, or their Bluetooth connection drops randomly. You only use optical cables (TV to receiver)