diff --git a/cc-ci-plan/upstream/mattermost-lts.md b/cc-ci-plan/upstream/mattermost-lts.md
index 3f0dfef..6f0a315 100644
--- a/cc-ci-plan/upstream/mattermost-lts.md
+++ b/cc-ci-plan/upstream/mattermost-lts.md
@@ -94,6 +94,16 @@
     was on 11.10.0 (operator chose innovation line that week); operator should now decide the
     `-lts` line. postgres 15-alpine still HELD (DB-major out of scope).
 
+- **2026-08-31 re-check** (endoflife.date/api/mattermost.json 2026-08-31; Docker Hub tag list;
+    GitHub release `v11.7.10`): **11.7 ESR line UNCHANGED** — latest patch still **11.7.10**
+    (released 2026-08-26, "various bug fixes"), EOL 2027-05-15. PR #2 already carries 11.7.9 →
+    11.7.10; the wildcard cert is RENEWED (valid to 2026-11-29), so this run just RE-VERIFIES PR #2
+    via `!testme` (the 2026-08-28 run's `!testme` was infra-blocked). 11.8.5 / 11.9.1 / 11.10.1
+    remain innovation (EOL 2026-09-15 / 10-15 / 11-15), NOT ESR — do NOT target; 10.11 ESR ended
+    2026-08-15 (upstream main still pins 10.11.22 = EXPIRED ESR → the 10→11 ESR move PR #2 carries
+    remains required; Mattermost docs: ESR→ESR is "fully supported and tested"). postgres 15-alpine
+    still HELD (DB-major out of scope, operator dump/pg_upgrade).
+
 ## NVD CPE fallback
 This project publishes nothing machine-readable we can reach — no GitHub advisory feed,
 no release-attributable changelog — so its CVE count was `?` (nothing measured). NVD is