• reworked toolbars:
  • added support for visibility toggle button (collapsing contents);
  • fixed unified toolbar and titlebar style under macOS;
  • toolbar visibility and location is now stored per main window;
• improved sidebar(s):
  • added ability to add new sidebars;
  • allow to change their location by drag and drop;
• vastly improved error pages:
  • special error pages are now used instead of SSL warning dialogs;
  • blocked content triggers dedicated error pages;
• improved User Agents configuration;
• added support for managing multiple proxy configurations and setting them per page or host;
• reworked internal actions handling system allows to specify parameters for actions trigerred by keyboard shortcuts and mouse gestures;
• vastly decreased import time for large bookmark files;
• added module for listing opened windows and tabs;
• improved styling under Windows, Unity and macOS;
• added new default icon theme by Kamil Nęcek;
• item views can now allocate extra space to predefined column other than last one;
• added action to set, reset or toggle an option;
• global editing actions now apply to focused single and multi line text edit widgets too;
• added ability to drop URLs onto bookmark bars;
• spell checking is now available in other multi line text edit widgets;
• added action to control multimedia playback rate;
• keyboard shortcuts are now validated while editing;
• added support for customizing F12 menu;
• implemented "Validate Using" menu;
• added support for configurable Fast Forward rules;
• lots of various fixes.