Arduino Uno Wifi Rev2-Test Blink Upload

Hardware Arduino WiFi Rev2
1

Hooked up the Arduino Uno Wifi Rev2 and conducted a test upload of the example basic blink sketch and got this message at the end.

avrdude: WARNING: invalid value for unused bits in fuse "fuse5", should be set to 1 according to datasheet
This behaviour is deprecated and will result in an error in future version
You probably want to use 0xcd instead of 0xc9 (double check with your datasheet first).

2

I have seen a similar warning many times on Nanos which I program via ICSP / avrdude.

It's nothing to worry about; as the message states, it's a warning.