SIsiquick·Jul 30, 2015
Sorry it was actually the Heroku CLI that didn't work - can't remember the exact error but it stopped me deploying.
edit:
Looks like a solution has been found so may reinstall the Beta
https://github.com/heroku/heroku/pull/1615
In Ask HN: Those of you running Mac OS X El Capitan Beta, how stable is it?