The HHVM blog has an exciting new post for those using the HHVM and Hack language - they've officially released version 3.0.0 with complete Hack support.

At our last major version bump (2.0.0), we basically became a whole new project. We switched from a “PHP -> C++” translator to a virtual machine. This version bump (3.0.0) is a much less dramatic code shift (we’re still a VM, don’t worry), but this time the big announcement is that we support a new language, Hack.

They take a step back in time and look at the changes since 2.0.0 in organization, technology and community involvement. From there, they get into "the business" of what's in this new release including:

• The old webserver is gone. If you get something like Uncaught exception: no factory for server type "libevent", you need to switch to fastcgi.
• We are moving from .hdf config files to .ini.
• Our most requested extension, mysqli is now in. (there's currently a bug, but the fix will be in 3.0.1).

You can find out more about the HHVM on the project's main website.