I just extra created an acoount just to reply here to say that the removal of the "recently closed tabs" button is the worst decision in whole opera history. This button was THE reason why I have always used Opera instead of Firefox or Chrome and I use Opera for more than 10 years. And now you removed it....
The new menu-->history way is very bad: way more clicks and much longer way for the mouse pointer and therefore uncomfortable and time wasting.
Adding the new search option is not wrong overall (although I don't need it) but why replacing another more useful thing with that? Do the Opera developers really think that average Opera user is such an dumb person that one button leads to overstraing while using Opera? The absolute minimum would be giving the user an option to decide which buttons he/she wants to have.
Thanks for the guys giving the solution with changing the flag but I am very afraid that the flag will be removedn a future version because of "cleaning up the code"... It will be the point where I have to choose a new browser.