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.
Maintenance update; new example
New demo game; scripting updates; bug fixes
3D improvements; resizable meshes; multiple Event Sheet Views & more
3D editor gizmo; other 3D improvements; bug fixes
Z axis scale updates; bug fixes
Hotfix
3D bullets; bug fixes
Patch release
3D editor preview; big Construct Games Services update; single-file Windows exports & more