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.
Ads for Instant Games and some bug fixes
Facebook Instant Games support & lots of bug fixes
Hotfix for r90
Lots of fixes and changes, and new in-progress Ukrainian translation
A few more bug fixes before stable release
Fix for saving issue in r88
Beta opt-in; Spanish & Czech languages; lots of additions and fixes
Project saving/opening improvements; some additions and fixes
Bug fixes; new in-progress Dutch translation
Desktop build improvements & a few more fixes