SpriTec Software has upgraded SuperTab, its OS X utility, to version 2.1. It’s an app for enhancing and extending the Mac’s built-in Command-Tab Application Switcher.

Version 2.1 introduces three new features that focus on the folder, including a “Clutter Free Folders” feature. It requires Mac OS X Yosemite or El Capitan.

A 30-day demo of SuperTab 2.1 is available for download (http://www.supertab.me/SuperTab.html). After 30 days, it remains fully-functional but will occasionally ask you to register. Until Aug. 15, you can take advantage of a special 50% off sale price of $10. SuperTab 2.1 is a free upgrade for SuperTab 2.0 users. Users of earlier 1.x versions of SuperTab can upgrade to 2.1 for $2.99.