I have been asked to change Jira to notify users only when specific issue fields are updated. For example, instead of sending a notification when there's a change to any field (component, description, priority), users should be notified only if an issue's summary has been updated.
I've checked through the documentation on notifications and I've found that I can enable or disable notification for comments, changes to status or assignee, et cetera. There doesn't seem to be a way to scope the "Issue Updated" notification down to specific field(s). I've also investigated using a post-function in the workflow, but since a change to an issue's summary isn't necessarily part of a workflow transition a post-function wouldn't trigger.
Any ideas?