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All users who change tasks in Jira are recorded in the Jira system logs. Any update you make (status, priority, assignee, or other fields) is a new change that will be added to the system log. The Issue History for Jira add-on can read the full task log "on the fly,” parse the data, format it, and show it to the user.
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How does built-in history
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look? - Single issue only
You can find it when opening each issue under the Activity section.
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