If you're interested in cutting edge Construct features try the Beta releases. These releases should not be used unless you are willing to tolerate some bugs.
Tile randomization improvements; animation preview improvements; 'read aloud' for text/spritefont; bug fixes
Tiled background tile randomization; increase free edition scripting limits; new script APIs & more
Tilemap & timeline brush improvements; new scripting examples; bug fixes
Hotfix for saving projects
Custom near/far distances; multiplayer data compression; upgraded zip support; bug fixes
Loads of additions, improvements and fixes
A few more bug fixes
More bug fixes
Bug fixes
Updated keyboard shortcuts and usability improvements