I've already did the Vivaldi update few times, but I jumped back to the old version by not saving Easy's session, because something's going not right I think. No problem with the update to version 6 on Lubuntu as well as WIndows 7, but my address bar changes it width and I'm loosing few icons next to it.
Vivaldi's 5.7 top bar
Vivaldi's 6.1 top bar
This is the update notofication when I click on "Get the latest Vivaldi" from menu start.
I can manually reattach the missing icons, not sure about the size of address bar, but maybe I'd figure out that too. Just reporting as an inconvenient I guess.