We recently did an upgrade to JIRA 4.4 from JIRA 3.x. One feature that I used often was to browse the commits associated with a particular JIRA and see which change sets were not reviewed. If a chance set had a review, it would have a little crucible icon beside it with a link to the review. This feature seems to be missing from the new JIRA 4.4.
I upgraded the Application Links to Fisheye/Crucible to ensure it had proper 2 way communication. This enabled a "Review" tab, but as you can see below, looking at the "Source" tab, I'm getting a suggestion to create a Crucible review for change sets that have already been reviewed.

But at least one of them has been reviewed.
