Since they switched to be chromium-based they stopped publishing for linux. is there someone who knows why? I can't see any technical problem stopping them..
There is someone who cryptically mentioned, I think on the thread about measuring a startup's product viability by whether or not employees voluntarily used said product, being a developer for Opera and his management team alienated a lot of developers by blowing off Linux and denigrating interest in it as a platform with supporting and the general low blow jokes.
I am too lazy to search. Maybe you or someone else will point you in the right direction.