Ah I misunderstood. I've just had WP 8.1 installed like a week ago (vendor version hence the delay probably), I'd have to wait next couple of weeeks for the update. Thanks for the info.
Windows Phone 8.1 Update is final yet. It is in developer preview. You can get the preview right now by registering as a developer and downloading the Windows Phone for Developers preview app. See https://dev.windows.com/en-us/develop/phone-updates