@rlevy I have the solution for both environments:
MAC:
- In Terminal enter: defaults write com.operasoftware.Opera OPDisableAutoUpdate true
Windows:
-
Open command as administrator: winkey+ x then select Command Prompt (Admin)
-
Enter the following:
setx OPERA_AUTOUPDATE_DISABLED true /m -
Close Command prompt
-
Open Opera
enter: opera://about