diff --git a/docs/CONNECTIONS.md b/docs/CONNECTIONS.md
index cd4219f8..f45d3e31 100644
--- a/docs/CONNECTIONS.md
+++ b/docs/CONNECTIONS.md
@@ -2433,7 +2433,7 @@ Legend: ✅ native · ~ partial / via extension / via another transport · ❌ n
 | **IBM MQ / MSMQ** | ~ | ❌ | ✅ | ❌ | not on roadmap |
 | **Kafka / streaming** | ~ | ❌ | ✅ | ❌ | not on roadmap |
 | **DICOM** (imaging) | ✅ | ~ | ✅ | ✅ | `DICOM-IN` C-STORE SCP (Phase 1) + `DICOM-OUT` C-STORE SCU/C-ECHO + `DICOMWEB-OUT` STOW-RS all shipped (ADR 0025); DICOMweb send exceeds both incumbents |
-| **Serial (RS‑232)** + X/Y‑Modem/Kermit + **ASTM E1381/E1394/E1318** | ~ | ❌ | ✅ | ❌ | **declined-by-design (v0.2+)** — legacy/niche lab-instrument connectivity, no feed demand ([BACKLOG.md](BACKLOG.md) #27) |
+| **Serial (RS‑232)** + X/Y‑Modem/Kermit + **ASTM E1381/E1394/E1318** | ~ | ❌ | ✅ | ❌ | **declined-by-design (v0.2+)** — legacy/niche lab-instrument connectivity, no feed demand ([BACKLOG #27](archive/backlog/BACKLOG-CLOSED.md#27-serial-rs-232--astm-e1381e1394e1318--decision-decline-unless-lab-analyzer-demand-no-build)) |
 | **FHIR** endpoint/client | ✅ | ✅ | ✅ | ~ | `FHIR-OUT` shipped (`FHIR()`, ADR 0022) + SMART Backend Services client auth (ADR 0024); the inbound **server facade** is deferred (BACKLOG #20) |
 | **Internal channel‑to‑channel** | ✅ | ✅ | ✅ | ✅ | the routing graph (wired by name) — plus two first-class internal inbounds: `Loopback()` (a captured reply) and `PassThrough()` (1:N internal re-ingress), ADR 0013 |
 | Printer / command‑line / screen‑scrape | ~ | ❌ | ✅ | ❌ | not on roadmap (niche) |