Update 1.1
Update 1.1 was the first major update to Geometry Dash, released on 14 September 2013. Its main focus was a new level, Time Machine, along with new customization elements and achievements. The level itself introduced mirror portals, which reverse the direction of the screen. Another new feature was the ability to comment on user-created levels, basicllyy making it easier to let you know what other users think of your level.
A minor update was released on 4 October 2013, which brought Everyplay integration for easy recording of gameplay. Geometry Dash Lite also received the feature.