The release blog post is here - https://code.facebook.com/posts/302060973291128/...

		nbm on June 10, 2014 \| parent \| context \| favorite \| on: Facebook open sources Haxl The release blog post is here - https://code.facebook.com/posts/302060973291128/open-sourcin... It contains a lot more information about the problem it was originally created to solve, and potential other use cases.