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.
New examples; Cordova updates; bug fixes
Bug fixes; pen updates; more JavaScript features
More new examples; bug fixes
Mesh editor; new examples; bug fixes
Hotfix for r227
Updated minifier; scripting improvements; other changes and fixes
JavaScript Modules for scripting; scene graph improvements; preview improvements & more
More bug fixes
Bug fixes
Audio play from URL; scene graph fixes; other improvements