As an alternative, or as an addition to updated the Description, additional Alert updates should go to comments.

The default behavior is to update the JIRA Description when the Alert details change. This makes it difficult if the viewers of the JIRA are researching each failure because it is not obvious which alerts are new or existing. Depending on the Alert expression, old firing details may also be removed.

Additionally, adding too many firing details to the description increases the likelihood of exceeding the 32KB char limit for the JIRA Description.

By optionally sending each update to a Comment, viewers can better keep track of which activity is new, and it will be possible to continue adding firing details without exceeding the Description char limit.