<http://schema.org/description>
"What does a new PTR build mean? Exciting icon changes, of course. In this new build (3.0.1.9684), 73 new icons were added, and 19 got tweaked. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.wowhead.com/news=81611.2/new-changed-icons-in-patch-3-1-build-9684>