great.
I have the very same computer of @jlbopera so for me was a kinda of surprise to discover that v25 was ok.
Up to now I was stacked in v12 (meaning that whenever I click for update, the result was "you have the latest version compatible).

Before doing something wrong can any of you confirm that ftp://ftp.opera.com/pub/opera/desktop/25.0.1614.71/mac/ is suitable for my mac-mini (1.66, early 2006, intelcoreduo, 10.6.8)?

Thanks