diff --git a/deployment.md b/deployment.md
index a0245f4..467f62e 100644
--- a/deployment.md
+++ b/deployment.md
@@ -435,6 +435,11 @@ Three things worth carrying forward:
    false on the co-located VD03 box, where the workaround is to point every `BaseUrl` at `127.0.0.1`
    so resolution never matches and each chip falls back to the raw Akka address. On QA the leader
    chips resolve to real names (`node-a (vq03)`), so that workaround is **not** wanted here.
+   **Correction (2026-11-09, scadaproj#43):** before that fix the host match ran across the whole
+   application, so on QA a group that shares hosts with another (the ScadaBridge site group vs central)
+   could show the other group's leader (`central-a`). `LeaderResolver` now matches only within the
+   group's own members; an unmatched leader shows the raw Akka address. Two members of one group on the
+   same host still can't be told apart.
 
 ---