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 HTML Element plugin; Templates improvements; bug fixes & performance improvements
Templates feature, new guided tours, and lots more!
Patch release
Some more bug fixes
Lots of bug fixes
Layer 'interactive' setting; scripting updates; bug fixes
Redesigned Start Page & new Example Browser!
New example; timeline copy/paste improvements; other changes
Hotfix for r278