[Zope] Which Version of Zope should i use?

Hi guys. I have developed a web site using Zope version 2.6.1. Now that site is ready to go online. Which version of Zope should i install in production environment? Do you suggest to stay on 2.6.1 or instead, to use the newer version 2.6.2? Do you think that the migration could cause problems? Thanks Paolo Dina