With this release we have the first of some new features that will ship in JIRA 6.1 final:

• New default workflow behaviour
• Classic JIRA workflow available from Atlassian Marketplace
• All newly created issues are now unassigned by default
• JIRA Redmine Importer now available

All these area already available to our JIRA onDemand customers and you can read all about them at the What's New page!