http://blog.kowalczyk.info/software/sumatrapdf/news.html
1.9 (2011-11-23)
Changes in this release:
support for CHM documents
support touch gestures, available on Windows 7 or later. Contributed by Robert Prouse
open linked audio and video files in an external media player
improved support for PDF transparency groups
All reports of updates go over here: https://portableapps.com/node/19705
It's already reported.
Sometimes, the impossible can become possible, if you're awesome!