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.
Functions 'Copy picked'; more Android updates; bug fixes
Export WebP; auto-keyframing; Android update & more
Some last changes
Bug fixes
Further timeline improvements; bug fixes
More timeline improvements; bug fixes
Better local font support; 8-direction sliding; bug fixes and improvements
Patch for r296
Effects improvements; better rendering of 3D transparency; bug fixes
Associate .c3p file extension; minifier update; hierarchies & templates improvements; bug fixes