What hardware versions exist for the 960C and can this be determined from the product label?

I'd also like to know if there are restrictions on which hardware versions can be upgraded to the current firmware version.

If there is only one hardware version then the latest firmware ought to be flushable.

I can't comment if there are different hardware versions but I had my 960C when they first came out so it will be one of the earliest ones as I wanted WiFi6 and it is happily running the latest release of firmware 1.4.8 with no observable issues.

Neil..

Thank you. Very helpful