diff --git a/.claude/skills/sister-project-history/otopcua.md b/.claude/skills/sister-project-history/otopcua.md
index 0b3d6b2..a0a18c7 100644
--- a/.claude/skills/sister-project-history/otopcua.md
+++ b/.claude/skills/sister-project-history/otopcua.md
@@ -154,3 +154,7 @@ AddRoute of the dev Mac (`oee-tagdump-mac`, `10.181.206.245.1.1`) on the two tes
   so a failed alarm subscribe after an outage is retried. **ScadaBridge-visible:** native conditions keep updating across
   unrelated deploys and recover after an upstream outage without a driver respawn. No wire-contract change. Pinned by an
   end-to-end `NativeAlarmFeedSurvivesDeployTests`; not live-gated on the rig.
+- **2026-10-09 #663 (closed; OtOpcUa `1355049f`).** #662 review follow-up: an in-place `ApplyDelta` on a Connected driver
+  called `ReinitializeAsync` but kept the actor's data + alarm handles, which the reinit had invalidated, so the driver
+  would go silent. Now releases both at the driver, reinitialises, and re-subscribes both. **Latent only** — unreachable
+  from a deploy since #516 (a DriverConfig change respawns). **ScadaBridge impact: none.**