The latest version of Report Builder (v 1.9.20) is out now!
Update to icons (font) to use FontAwesome 5 in UI
Update to icon widgets to use FontAwesome 5+ to give greater control over icon styles
Changes to sign in process to make view/edit switching more robust
Tweaks to UI to reflect icon changes
Fix for axis titles bug (empty text was being discarded)
Changes to webjobs to record status of last publish attempt in ArcGIS Online tags