Bamboo currently supports triggering when a repository tag is changes/created.

https://confluence.atlassian.com/bamboo/tag-triggering-1031180298.html

The current implementation used polling at regular intervals to determine if there has been a tag change/creation. This means that multiple tags do not cause separate plan execution.

This documentation feature request is to add to the documentation to explicitly that this is a poll feature rather than event driven. Especially, with Bitbucket integration allowing for immediate notification for commtis.