I know that the idea with Jira versions is that when you have finished working on a ticket you set the fixVersion, and then you can release from Jira. However, in reality I find this does not work for us, mainly as we release fairly regularly; often we have small bugs within the system, or we have parts of the system that take a bit longer to finish off. As we are not on a hard and fast release schedule, this kind of releasing doesn't bother us too much.
However, we would like to know when something went out, as sometimes it is nice to see that that bug has now been fixed. Therefore is it possible that a bamboo deployment could push back to Jira the version number and the issues within that version. Rather than having to pre-empt which version we are going to release from Jira.