The JIRA Toolkit plugin has a custom field for this purpose. If you're attempting to get this data in field form this is likely your only non-custom option. JIRA Toolkit available for free for JIRA Server and JIRA Cloud.
The custom field is of type Participants Field.
It's my belief that this only includes Assignee, Reporter, and Commentors though, so I am not sure if users triggering the Issue Update event will be added to this. Good luck.
Over the next several weeks we'll be sharing some of our Getting Started guides here in the community. Throughout this series of posts, we'd love to hear from customers and non-customers ab...
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