There are several great reasons to upgrade to Mac OS X 10.10.3. Apple’s new Photos.app and security vulnerabilities are a couple of examples. But the big news, of course, is that it fixes the underlying Quick Look bug that affected some systems running Art View on Mac OS X 10.10.2.
Compatible systems of Mac OS X 10.10.3, released on April 9, 2015, can download the latest version by visiting the “Updates” section of Apple’s “App Store” ( > App Store… from the menu bar) application.
You can download the latest version of Art View here.