Unreads, badges and notifications
When collapsed threads is enabled, notifications behave differently - see matrix of scenarios and associated outputs here (full spreadsheet of the chart below)
Other Implications to existing features (webapp)
Search
Parent posts behave as-is. The ‘Jump’ action in the hover menu opens the parent post in the channel context
Child posts display similarly, but the ‘Jump’ action in the hover menu opens the thread in the RHS scrolled to the child post
Pinned and Flagged posts RHS
Parent posts behave as-is. The ‘Jump’ action in the hover menu opens the parent post in the channel context
Child posts display similarly, but the ‘Jump’ action in the hover menu opens the thread in the RHS scrolled to the child post
Compact Mode
Displays as-is, but shows the new Thread Footer below the post content
Other Implications to existing features (mobile app)
Search
Tapping on a search result goes to the Single Thread View (rather than opening it up in a modal) with the clicked message in view
Pinned and Flagged Views
Tapping on an item goes to the Single Thread View with the tapped message in view