Today we released a minor upgrade to Vivaldi 1.6 to fix an issue where certain media files would not play for users on Ubuntu 16.04 and 16.10.
Since this was a Linux only issue, Windows and Mac users will receive no update.
Changelog since the second 1.6 release
- [Linux] Vivaldi does play proprietary HTML5 video and audio on Ubuntu with chromium-codecs-ffmpeg-extra 55.0.2883.87 (VB-24384)