diff --git a/BUILD-LOG.md b/BUILD-LOG.md
index 53adcd17..221493f1 100644
--- a/BUILD-LOG.md
+++ b/BUILD-LOG.md
@@ -3679,3 +3679,7 @@ To remove, 17:
 - `rev02r7`, created by hand on 2026-09-15 with no labels. Compose won't recreate it. Its only trace is a rev-code-02 session log from September, and no compose file or config names it.
 
 The reference check runs again just before each removal. A network that gains a container in the meantime is skipped and reported.
+
+### 2026-10-09 — Sage, Docker network removal result
+
+After: the reference check ran again before each removal, and all 17 networks listed above were removed. None was skipped. That leaves 15 networks: 13 bridge, plus `host` and `none`. All 55 containers are still there. No volume and no `daemon.json` was touched. A probe network got 172.23.0.0/16 and was removed right away, so new compose projects can get a subnet again. `COMPOSE_PROJECT_NAME=gate2` is no longer needed for test-release and test-task. Receipts are `removal.txt`, `networks.txt` and `containers.txt` in `~/sage-scratch/netclean/`.