diff --git a/docs/plans/2026-07-21-gamewindow-slice-4-live-entity-integration.md b/docs/plans/2026-07-21-gamewindow-slice-4-live-entity-integration.md
index 635b7ca0..18035299 100644
--- a/docs/plans/2026-07-21-gamewindow-slice-4-live-entity-integration.md
+++ b/docs/plans/2026-07-21-gamewindow-slice-4-live-entity-integration.md
@@ -22,8 +22,10 @@ them inside a mechanical extraction.
   replacement, default-pose resolution, local-shadow ownership, and recursive
   retained projection withdrawal passed three clean reviews plus 6,799 Release
   tests / 5 skipped on 2026-07-21.
-- [ ] C — hydration create/materialize/landblock-recovery ownership and direct
-  CreateObject/streaming cutover.
+- [x] C — hydration create/materialize/landblock-recovery ownership and direct
+  CreateObject/streaming cutover. Landed in `d10c5f2d`; 6,854 Release tests
+  passed / 5 skipped after three clean retail, architecture, and adversarial
+  re-reviews on 2026-07-21.
 - [ ] D — ObjDesc/Parent/Pickup/ready/withdraw ownership and exact retained
   identity across leave-world/re-entry.
 - [ ] E — Delete/prune and retryable exact-incarnation teardown ownership.
@@ -268,6 +270,20 @@ clean.
   failure/retry; no duplicate mesh/script/effect activation.
 - Full Release build/test; review cycle.
 
+Completed in `d10c5f2d`. `LiveEntityHydrationController` now owns the exact
+CreateObject registration transaction, world-origin bootstrap, pending
+deferral, first DAT projection materialization, landblock recovery, and the
+ready/PES replay boundary. Same-generation CreateObject supersession carries
+a monotonic integration version and a persistent retry obligation, so an
+older reentrant materialization cannot publish or erase the newer canonical
+snapshot. Parent and pickup creates complete through their retail cell-less
+paths, while interrupted initial hydration reuses the same animation
+sequencer and completed owners retain their exact phase and callback queues.
+Session CreateObject and streaming callbacks route directly to the extracted
+owner; the old GameWindow bodies are gone. Release build completed with zero
+warnings and errors; 6,854 tests passed with five intentional skips; retail,
+architecture, and adversarial re-reviews were clean.
+
 ### D — appearance, parenting, pickup, withdrawal
 
 - Move ObjDesc, Parent, Pickup, child-ready, collision registration, and