Before today, I was able to create Story sub-tasks with the type set to "Acceptance Criteria". This feature allowed one to enumerate the acceptance criteria for a user story.
After being automatically upgraded to JIRA Agile 6.3 today on our OnDemand account, the Acceptance Criteria sub-task is now gone. The only type available is Technical Task. What the hell happened to Acceptance Criteria, one of the most important parts of a user story. Even the documentation has removed all mentions of acceptance criteria. What's up Atlassian?