v2.0.1

Upgrades .hh file to .hack, because the latest hhvm release doesn't support .hh anymore
https://hhvm.com/blog/2021/10/26/hhvm-4.133.html

v1.0.3

Changes file extension from.hh to .php so that hhvm v4.133 users who install v1 get a better error message.

v2.0.0

This major version is meant to support HHVM versions equal to and above 4.26.

v1.0.2

Support HSL 1.4.

v1.0.1

This major version is meant to support HHVM versions below 4.26.