The biggest new feature of the Zenwalk Current ISO 220217 release is the reimplementation of the GTK3 build of the Mozilla Firefox web browser, which ships with multithreading enabled by default. Please note that Mozilla Firefox 52.0 Beta 7 is included in this ISO snapshot. Moreover, the Zenwalk Current ISO 220217 image comes with significant performance improvements for video playback, as it updates the FFmpeg and MPV packages to versions 3.2.4 and 0.23.0 respectively. The GStreamer appears to no longer be included in the ISO image, but users can install it from the official Slackware repositories.