diff --git a/docs/roadmap/implementation.md b/docs/roadmap/implementation.md
index 12cdf4a..5e73bd8 100644
--- a/docs/roadmap/implementation.md
+++ b/docs/roadmap/implementation.md
@@ -1,6 +1,6 @@
 # Configuration Discovery Implementation Plan
 
-Status: in progress. Stages 1 through 9 are complete.
+Status: complete. Stages 1 through 10 are complete.
 
 Implement the target behavior in [the discovery roadmap](discovery.md). That
 document owns the selected conventions and OD-1 through OD-5; this plan owns the
@@ -422,7 +422,7 @@ contract, ADR, and maintained examples. Run the documentation link test and
 whitespace review. Execute any newly changed behavior-bearing examples; reuse
 Stage 8 results for unchanged examples. Mark and commit.
 
-## Stage 10 — Review The Complete Feature And Validate The Candidate
+## Stage 10 — Review The Complete Feature And Validate The Candidate (Complete)
 
 1. Compare the full implementation with the roadmap and this plan. Check every
    OD, the API/default/empty distinctions, preset lists, lazy failures, context