[r24y]

Viewing it on OS X, it looks like they're using the San Francisco font. A little jarring if you're used to seeing the old typeface 20+ times/day, but it looks good.

Fortunately, the transition seems to have gone a bit better than Medium's: https://medium.com/design/system-shock-6b1dc6d6596f#.j5z5g5g...

[toomanybeersies]

You would think that a site as large as Medium would think of actually testing their site on Windows before deploying.