diff --git a/docs/v4.0.0/MESH.md b/docs/v4.0.0/MESH.md
index 45bde8fe..e72889fa 100644
--- a/docs/v4.0.0/MESH.md
+++ b/docs/v4.0.0/MESH.md
@@ -44,6 +44,9 @@ before making v4 equal v3 on bare metal (`ENGINE.md` step 4), which waits.
    itself at a port; preemptive is Hera putting a node to sleep or killing
    it between any two instruction words. An idle node does not spin: it is
    blocked reading its ports.
+   **Changed 2026-10-16: births follow v3.** Captain Bob: "we want v3
+   behavior for v4". Any node may birth, not Hera alone; section 9 says
+   what that is. Killing stays Hera's, as in v3.
 8. **A node is born empty.** It has nothing but the ability to listen. The
    first thing a neighbour sends it is a capsule of F18 code. StarForth's
    nucleus is such a capsule.