[Zope] MySQL and Zope 1.11

I noticed on zope.org that there is a new MySQL database connector for Zope 1.11. The one I can find is dated Jan 11, 1999. Anybody know where it is? Is it required for Zope 1.11? Can the Data.bbb be moved directly into 1.11? If so, how do I update exixting MySQLDB connections? Thanks, Phil A