v5.9.0

New

• The sidebar can now be collapsed to a slim icon-only rail, and resized
  by dragging its edge.
• The task detail view is cleaner: less-often-used fields (repeat,
  reminder, checklist, custom fields, related tasks, notes) are now
  tucked under one "Extras" section you open when you need it, instead
  of always taking up space.
• The sidebar's sync icon now shows its status (synced, syncing, error,
  or conflicts) through its own color — tap it to jump straight to Sync
  settings.

Fixed

• The calendar/date picker could get visually cut off when opened
  inside the task detail view.
• The sidebar could keep a project highlighted as "current" even after
  you'd navigated away to Dashboard, Focus, or Agenda.