Vivaldi’s new version announcements seem to be getting worse. Version 1.13.1008.36 was released a few days ago as another ‘Minor update to Vivaldi 1.13’, but details are scant: the new version number is never actually mentioned, and there’s no reference to any release notes.
The announcement does at least provide a brief list of the new version’s changes, which consist of a few bug fixes and an update to the Chromium engine that includes security fixes.
Given that there are security fixes in this release, Vivaldi users should probably upgrade as soon as possible. You can do that by clicking the browser’s ‘V’ menu at the top left, then
Check for Updates.