Josh Watzman Experimental Mac OS X Support Posted August 31, 2015 We’re happy to announce official Mac OS X support in HHVM, with version 3.9! If you use Homebrew and want to get started now, the steps to use our official tap are really simple: If you don’t use Homebrew or want to build HHVM yourself, take a look at our wiki page for directions. Building HHVM is a very resource-intensive and slow