diff --git a/docs/roadmap/implementation.md b/docs/roadmap/implementation.md
index b54ba13..24398e4 100644
--- a/docs/roadmap/implementation.md
+++ b/docs/roadmap/implementation.md
@@ -387,6 +387,9 @@ a compatibility promise. Update affected target/presence GoDoc with this change.
 
 ## Stage 4 — Migrate The OpenRouter Catalog Assets
 
+**Completed:** 2026-09-30. Published OpenRouter catalog `v3.20260930.0`
+from `f17d208cb7ad1fb043cda2266cd3011d11b40aa0`.
+
 Scope: `../promptkit-backend-openrouter` only. Catalog maintainers own source and
 publishing checks here; PromptKit consumes its configuration through ConfigKit.