Prior to upgrading we had 'long' Workflow Scheme name (45 characters and up)
With Jira 5, names have been restricted to 30 characters.

While the upgrade kept the long names, when trying to rename a Workflow Scheme (after copying for instance), it is impossible to rename the copy without having to trim the name to 30 characters. Any edition is impossible otherwise.

Since the system seem to work fine with 30+ characters, Jira 5 should still offer support for those.