It is a fork in that it is a parallel line of development but from reading Twitter's blog the desire is to get some or all of their work upstream. Releasing the

It is a fork in that it is a parallel line of development but from reading Twitter's blog the desire is to get some or all of their work upstream. Releasing the fork like this gets them some early OSS & engineering cred while being able to start the conversation on their modifications. We look forward sharing our work with upstream and other downstream MySQL vendors, with a goal to improve the MySQL community. http://engineering.twitter.com/2012/04/mysql-at-twitter.html http://engineering.twitter.com/2012/04/mysql-at-twitter.html