I'm still a very happy V10 Pro user and not tempted still to upgrade. But my current version remains complaining that there is a later V10 version. I can't download that version automatically or through the website.
Can I get that latest version, so that the complaining stops?
10.5.7.0 was the last Opus 10 update. Which version are you on?
If you're already on 10.5.7.0, just turn off the update checker to stop it telling you there are newer versions.
There has not been an Opus 10 update for five years so I'd be surprised if it was detecting an update to version 10 (and not the Opus 11 or 12 releases, which I think the Opus 10 updater also detected), unless you've had an old version of 10 installed for 5 years and not noticed until now.