Besides the burn in, there are still other issues needed to be considered, such as system synergy and weak link in the system. The new firmware may not be the weakest link in your system. Or, it may just be not suitable to your system. And, if you don’t try you will never know. I would say "Take this opportunity. It is free of cost. :)
Totally disagree!
My system is performing amazingly and I have all my other digital sources to confirm it.
Up until the FW update, the Pontus II had some advantages on sound quality but now it is simply the worst I ever had: flat, tiresome and not engaging at all.
Before was sublime.
Changing my system to pursue the dac “new sound” seems really absurd to me.