diff --git a/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md b/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
index f98dcbdb..0373731f 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
@@ -34,3 +34,8 @@ the principle that settles it, cited as "design 47 G A-n".
 - **A-188** (A-172, §170, §151; principles 3 and 7) A take-in writes its entries (each with its module) into the
   gate's record, so `recovery-merged`'s `module` is filled from the record; no forge-made open path is built, since
   G ends the mark (§151). A record of the old milestone form, made before G, says no branch.
+- **A-189** (§376, §374, A-181; principles 1, 2 and 7) At its start the assigner reads whole, as A-181 reads
+  `build.ended`, the streams of its own `version-delivered` and of the catalog seat's `version-released`, so it says
+  each version delivered once and knows the released ones. A dependent whose want changes fingerprint waits, by an
+  edge of kind 2, 4 or 6, for its dependency's newest released version on the dependent's branch not yet said
+  delivered; on a branch where no version is released there is no wait.