On Monday, a weekly snapshot based on Chromium 41 has been released for Vivaldi browser with auto-updater included for Windows (32-bit) to check and notify you when new builds are available, though this is not working properly right now, you can still manually check for updates for Vivaldi from the Help menu. New snapshot Vivaldi 18.104.22.168 released yesterday brings new features.
Tab Stack Tiling
You can now view pages in a tab stack side by side, for this, right click on a tab stack and select ‘Tile Tab Stack’. To undo it, right click and select, ‘Untile tab stack’.
If you’ve set Vivaldi to not to show images or show only cached images in Settings, then plugins will load on demand in tabs.
For more information and the complete changelog, check this blog post (you can also download the latest build for Windows, Mac and Linux from this page).