Documentation for JIRA 4.4. Documentation for other versions of JIRA is available too.
When you upgrade or renew your JIRA license, you will receive a new license key. You will need to update your JIRA server with the new license key.
You can access your license key via http://my.atlassian.com
To update your JIRA license key:
Screenshot : License Details
If you have a user-limited license (such as a starter license), then the user limit of your license will be displayed on the 'License Details' page. This field is periodically refreshed, but you can retrieve the latest user limit by clicking the 'Refresh' button.
Need more information about licensing or want to find out more about starter licenses? Please see the Licensing FAQ and Starter Licenses page.