diff --git a/backlog/tasks/task-039 - MapShape-Integration-Connect-Subsystems-to-Canvas-Shape.md b/backlog/tasks/task-039 - MapShape-Integration-Connect-Subsystems-to-Canvas-Shape.md
index 6093c3d..978e884 100644
--- a/backlog/tasks/task-039 - MapShape-Integration-Connect-Subsystems-to-Canvas-Shape.md	
+++ b/backlog/tasks/task-039 - MapShape-Integration-Connect-Subsystems-to-Canvas-Shape.md	
@@ -4,7 +4,7 @@ title: 'MapShape Integration: Connect Subsystems to Canvas Shape'
 status: In Progress
 assignee: []
 created_date: '2025-12-05 02:12'
-updated_date: '2025-12-05 02:21'
+updated_date: '2025-12-05 02:28'
 labels:
   - feature
   - mapping
@@ -25,7 +25,7 @@ Evolve MapShapeUtil.tsx to integrate the 6 implemented subsystems (privacy, myce
 - [x] #1 MapShape props extended for subsystem toggles
 - [x] #2 Presence layer integrated with opt-in location sharing
 - [x] #3 Lens system accessible via UI
-- [ ] #4 Route/waypoint visualization working
+- [x] #4 Route/waypoint visualization working
 - [ ] #5 Collaboration sync via Automerge
 - [ ] #6 Discovery game elements visible on map
 <!-- AC:END -->
@@ -64,4 +64,29 @@ Evolve MapShapeUtil.tsx to integrate the 6 implemented subsystems (privacy, myce
 - Integration with OSRM routing backend
 - Connect presence system to actual location services
 - Wire up discovery system to anchor/spore data
+
+**Additional Implementation (Dec 5, 2025):**
+
+### Routing System - Fully Working:
+- ✅ MapLibre.Marker implementation with draggable waypoints
+- ✅ Click-to-add-waypoint when routing enabled
+- ✅ OSRM routing service integration (public server)
+- ✅ Auto-route calculation after adding/dragging waypoints
+- ✅ Route polyline rendering with GeoJSON layer
+- ✅ Clear route button with full state reset
+- ✅ Loading indicator during route calculation
+- ✅ Distance/duration display in routing panel
+
+### Presence System - Fully Working:
+- ✅ Browser Geolocation API integration
+- ✅ Location watching with configurable accuracy
+- ✅ User location marker with pulsing animation
+- ✅ Error handling (permission denied, unavailable, timeout)
+- ✅ "Go to My Location" button with flyTo animation
+- ✅ Privacy level affects GPS accuracy settings
+- ✅ Real-time coordinate display when sharing
+
+### Still TODO:
+- Discovery system anchor visualization
+- Automerge sync for collaborative editing
 <!-- SECTION:NOTES:END -->