Vivaldi 2.8.1664.35 arrives less than three weeks since the release of the 2.7 update, but it only features various tweaks and fixes that aim to provide "a smoother browsing experience" alongside images toggle via keyboard and a few new bookmark customization options. Those who missed the news should know that a beta for Android handsets is also available.
https://www.notebookcheck.net/Vivaldi-2-8-drops-earlier-than-expected-but-without-any-major-changes.435038.0.html