v0.20.0

New Features & Improvements

• Add limited WMS support #2612
• Add workerCount constructor option #2666
• Improve performance of locationPoint and pointLocation #2690
• Remove "Not using VertexArrayObject extension" warning messages #2707
• Add version property to mapboxgl #2660
• Support property functions in circle-opacity and circle-blur #2693

Bugfixes

• Fix exception thrown by "drag rotate" handler #2680
• Return an empty array instead of an empty object from queryRenderedFeatures #2694
• Fix bug causing map to not render in IE