The company said in a statement that other versions, for the desktop (Windows and Mac) and Android were also much faster than earlier versions.
A number of speed claims for various browser actions have been outlined here.
"I’ve been doing browsers for 25 years and one thing has always been true: speed and performance matter," said Vivaldi chief executive Jon von Tetzchner.
"This is an ongoing process and we hope you will enjoy these gains in Vivaldi as much as we do."
Bookmarking is now claimed to be easier on the Android version. Bookmarks can be stored in a Speed Dial folder or Bookmark folder, with both categories easily available.
Von Tetzchner said: "Many of you think that surfing sites on your mobile phones is often anything but efficient. We believe the opposite.
"Vivaldi has different ways to browse that make browsing flexible, efficient, and more pleasant. They’re all sitting there waiting to be found, — so, why not take advantage of what we have to offer?"
Some of the other tweaks that come with the new version, 3.7, are:
Web panels will now allow websites to reload at regular intervals, helping a website that needs some eye-keeping. This works especially if a news site has been added as a Web Panel.
A crowded tab bar can be decluttered in two clicks using the "Tab Stack by Hosts" option. It will go through all tabs and stack the ones from the same domain.
Users can now edit the context menus that they open when right-clicking anywhere on a web page.
The keyword searched for in Quick Commands now appears in bold, similar to how search words are highlighted in the Address Bar.
Users can also periodically reload websites through Quick Commands by simply typing “Periodic reload 2” and pressing enter; the tab will then reload every two minutes.
Adding support for silent updates for Vivaldi on Windows has started. Part of the process will be activated in the regular update cycle in future.