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.
Mobile app ratings, editor performance improvements, various additions and fixes
Auto-tiling, usability improvements & lots more
Some last bug fixes before stable release
Bug fixes
New timeline examples; mobile export updates; scripting updates
Experimental local file saving; timeline updates; bug fixes
Fixes some bugs, and access behaviors from scripting
New 'Move To' behavior
Scripting autocomplete updates; plugin updates; bug fixes
Candidate for stable release