Two days now I have installed in Ububntu 15.10 new version Opera 38.0.2205.0 successfully. But, unfortunately there is an important problem. Unless I make a mistake, the problem is that, when I go to www . google . com page, and login my Google account, making a click in Google apps icon or G+ notifications on the up right corner, nothing happens. I cannot open Google applications neither G+ notifications. I think you should check it and give shortly a new repaired v38 release, or, if there is a solution on that, please give me that solution in this discussion.
Thank you for your time!