www.makemkv.com

After discovering my WH1416NS40 was too old to flash, I found a 2023 WH16NS40.
My first 4k UHD will be delivered soon and I'm going to back it up like I've done for all my DVDs and Blu-rays.

For a newer WH16NS40, is the v1.02 WH16NS60MK firmware all I need?

The Ultimate UHD Drives Flashing Guide says:

WH16NS40 on any Firmware directly to > WH16NS60 1.02MK

So, yes.

Awesome - thanks.