zendframework/zf2-documentation — pull request #677 by ezimuel (2013-02-19 11:02:41+00:00)
Title: Fixed the bcrypt doc about cost parameter

Fixed the doc about the cost parameter. If you change the cost value in Bcrypt you don't need to regenerate all the previous hash passwords. The Bcrypt reads the cost value from the hash output and use it for the authentication process.