postcss/autoprefixer-core — pull request #3 by radium-v (2014-08-27 16:51:43+00:00)
Title: Allow Safari 6.1 to use final Flexbox spec

Safari 6.1 supports the final (prefixed) Flexbox spec as well as the 2009 spec. This pull request allows autoprefixer to prefer the latest spec for this version of Desktop Safari.