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.
PBR lighting; transmissiveness; 3D model improvements & more
3D lighting; more 3D model updates; bug fixes
3D model updates; bug fixes
3D model improvements; bug fixes; new examples & more
Patch release
More bug fixes; new example
Bug fixes; new example
3D model texture loading; bug fixes; new demo game
3D rotation improvements; bug fixes
3D rotation; Billboard behavior; Tween updates & more