Highlighted below are the most glaring differences between JIRA 6 and 7. For more details, see Atlassian’s What’s New in JIRA 7.0.
Issues screen is now Statistics.
JIRA 7. In the Activity screen, click Switch view, then choose Statistics.
Calendar link is missing.
JIRA 7. Workaround: add JIRA Issues Calendar gadget to your dashboard.
Project Administration Link is at the Bottom
JIRA 7. Project Administration link is at the bottom.
Attachments are Shown Differently
JIRA 7. Choice between Thumbnails or List.
Fewer Choices for Gadget Refresh
JIRA 7. The only Refresh interval is 15 minutes.
Gadgets are Not Listed by Default
JIRA 7. Gadgets must be loaded. Known bug to be fixed in future release.