diff --git a/docs/roadmap/implementation.md b/docs/roadmap/implementation.md
index ef42f67..fe75c65 100644
--- a/docs/roadmap/implementation.md
+++ b/docs/roadmap/implementation.md
@@ -188,6 +188,8 @@ Commit intent: `feat: define Seriatim role contract`
 
 ## Stage 2: Manage Build Dependencies and the Source Checkout
 
+Completed: `b84b045` (`feat: manage Seriatim source prerequisites`)
+
 ### Objective
 
 Implement idempotent Git and Go prerequisite management and converge the
@@ -496,3 +498,4 @@ out-of-band execution. Completion requires subsequent review.
 ## Progress Notes
 
 - Stage 1 completed in `ansible-role-seriatim` commit `ac35c1f`.
+- Stage 2 completed in `ansible-role-seriatim` commit `b84b045`.