Timeline view in Jira spaces has changed over the weekend?

The new UI behavior is causing a lot of friction. Could we please revert it? It is significantly reducing our team's agility.

We are experiencing challenges in our planning due to these limitations as well. It would be greatly appreciated if we'd be able to roll back this UI change.

I agree as well that this change created lots of confusion. The timeline view now shows also tasks along with epics.

Some tasks that were created later and assigned to an epic does not seem to show in the expanded dialog window of an epic; they show up in the timeline as separate task but when clicking on the "Show hierarchy" button, the relationship is correct.

Additionally, it seems that the filter "Hide done work items" does not have any effect on the child items of an epic.

I think this was a major step back to the Timeline dashboard.

This has completely undermined multiple work management processes and made understanding individual workloads across multiple epics far more complicated. Using any filter results in this flattening and breaks apart the clear high-level picture that was previously provided. Without significant change to internal process, this change destroys the value of the timeline view.

At the very least when it flattens group child items next to their parent/epic item. It currently just shuffles everything together making it overly complicated to understand which child items relate to which parents, requiring dozens more interactions on the page to hunt down all the details.

The filter change is also arbitrarily inconvenient. In a team-managed space why would I ever need to filter to assignees not included on the team, parents not in the workspace, labels that don't exist in the workspace, and work types/statuses not used in the team-managed space. Now I've got to scroll or search for the values relevant to the team-managed space I'm in. The environment is meant to be agile, adding 1-3 seconds to every action taken adds up quickly and is definitely not agile.

At least make the changes optional instead of forced.

This has hobbled a critical view our teams use daily in our workflow.  Now with flattened hierarchies we cannot keep a high level view on our delivery timelines.  There is far too much noise on the timeline view and no grouping options at all.  This view has become useless and there is no effective replacement.

Please revert this until the feature is ready to roll out!  I would volunteer to user test any future changes.

This has significantly hampered epic and team planning activities. The ability to plan at the epic level and easily see the items under each epic with completion status was a valuable planning capability that this view enabled.

This page is now no longer valuable for me and I have lost the most actively used view that I as a PM used to view and structure work.

This simply hasn't been user tested enough to understand what the previous iteration of the page was actually used for. 

This change has caused marked friction for my PMs as well. While Amy Cheong did write that we can "contact support to opt out," it's unfortunate that such a significant change to workflows wasn't opt-in by default. 

@Jason White nice callout on what the PM wrote:

⏸️ The ask for an opt-out window or a more phased rollout is fair. If you'd like to opt out of the new timeline while we work through these gaps, please contact support to opt out.

I just wanted to add here that if this change adversely affects you, your site, and your users, you definitely should:

1. File a Support Ticket to opt out
2. Add a comment to the official thread for this change:
   Upcoming: Unified, More Powerful Timeline for Jira Software Spaces
3. Vote for JRACLOUD-98720 - Software Timeline: Hierarchy and epic grouping behaviour regression when filter is active 

Doing these things should send a signal to Atlassian that they need to prioritize this fix.

See this comment.