Hello everyone - I am excited to share that updates are in progress which will improve nesting behavior for level 1 epic and above issues, including custom issue types, in the list and timeline views, in both CMP & TMP business projects. See the related community post here: https://community.atlassian.com/t5/Jira-Work-Management-Articles/Exciting-News-for-Jira-Work-Management-Users-Enhanced-Task/ba-p/2608120. 

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What this means:

• DONE: Nested hierarchy in list view.
• DONE: Nested hierarchy in timeline view.
• Coming Soon: Updates to grouping in the list view, based on feedback.
• FYI: We are not planning on making updates to nesting in the board view or overviews at this time.

Release tracks rollout has been scheduled for the following dates:

• 12 June 2024 - Preview Track (sandboxes)
• 10 July 2024 - Bundled Track (production)

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There are a few other requests in this thread including nested hierarchy in the board view and in filtering. We will be tracking those requests in other tickets, which I would encourage you to follow.

• Filtering -> JWMCLOUD-698
• Boards -> JWMCLOUD-25

Best,
Meg
Senior Principal Product Manager, Jira