Shows estimates summaries and percentage done (based on estimates) in the epics details in Jira cloud next-gen projects
For some reason the summaries of estimates are only shown in the backlog in Jira Cloud next-gen projects and not in epics. In epics you can see a summary based on numbers of tasks but this is less accurate since tasks takes different amount of time to complete.
This extension adds the same summary for epic details so you can get a much more accurate overview of how the work is going.
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Source: https://github.com/hengun348/Jira-estimate-summarizer