It’s good news for many web developers: Microsoft recently announced to stop supporting older versions of Internet Explorer (IE) by January 12, 2016. For our projects where we test online reports for IE9 compatibility, we have the objective to reduce this effort and recommend our customers to focus on browser compatibility beginning from IE11 (besides current versions of Chrome, Firefox and Safari). Many problems with modern CSS not working properly on old browsers are also fortunately solved by this move.