Summary

Bamboo does not log which admin user performed changes to the license key in Bamboo when doing so through the UI.

Suggestion

Please include an audit log entry for when someone changes the license key in Bamboo through the User Interface. This can help in scenarios where there are multiple users with admin access.

Workaround

Review the atlassian-bamboo-access.log files inside <bamboo-home>/logs and look for an entry with the following strings: updateLicense.action and POST:
The username of the user who performed the license update should be in a line with a POST request. E.g., in the line below, the user "eduardo" performed the license update:

2024-07-10 16:12:08,727 INFO [http-nio-8085-exec-3 url: /bamboo/admin/updateLicense.action] [AccessLogFilter] 170.0.0.1 eduardo POST https://myBamboo/admin/updateLicense.action 1579848kb

If you can't find that entry in any of the access log files, the timestamp of the license change might have already been rotated and it's no longer possible to get that information.

If the change was done directly in the <BAMBOO_HOME>/bamboo.cfg.xml, the only way to track that is through System Logs (if they were enabled and tracking such changes at the time).