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.
Loads of bug fixes
New examples, and lots of bug fixes
Bug fixes for r123
Tween behavior; drawing canvas plugin; advanced random plugin; bug fixes
C3 runtime now default; new tile movement; audio fades; lots of fixes
New feature bonanza! Three new plugins & much more
Some more changes and a few SDK updates
New template; several smaller additions; a few more bug fixes
Memory management for C3 runtime; new 'Falling shapes' template; bug fixes
Lots of updates for new C3 debugger and C3 runtime