List of Lite-On firmware changes?

Does anyone have a list of the changes in the different Lite-On firmwares. Lite-On doesn’t seem to want to tell anyone what changes they make.

I have a LTR-40125S with firmware ZS0K.
Is there any reason to upgrade to 0N?

Theres always reason to upgrade to the latest FW, most of the time the change is just “Match more media”, but sometimes you get P-CAV and Mt Rainier :slight_smile: