#10017 has introduced support for the HHVM built-in web server. This web-server server is now deprecated, see: - https://github.com/facebook/hhvm/wiki/Libevent-Removal - http://hhvm.com/blog/4349/hhvm-3-0-0 I think it is still in the sources but no more delivered with the packages. Not sure if it's worth keeping this ?