I created a listener with the Issue Updated event.
Some questions I have is what exactly does the Issue Updated event look out for? The reason I ask this is because when I tried getting the changehistory I noticed it doesn't include changes like new comments or creation of subtasks which to me are issue changes/updates.
What I am trying to do is whenever the "Updated" date is changed get the author, if the change was made by a specific user then update another custom field with something.