diff --git a/cc-ci-plan/upstream/plausible.md b/cc-ci-plan/upstream/plausible.md
index 19a58c2..6fb71f5 100644
--- a/cc-ci-plan/upstream/plausible.md
+++ b/cc-ci-plan/upstream/plausible.md
@@ -14,7 +14,11 @@
   `ghcr.io/plausible/community-edition` starting with v2.1.x. The v2.0.0 image is still on Docker Hub
   as `plausible/analytics:v2.0.0`.
 - ClickHouse version must be compatible with the plausible app version. Check release notes when
-  upgrading either. The `23.4.2.11-alpine` image works with plausible v2.0.0.
+  upgrading either. The `23.4.2.11-alpine` image works with plausible v2.0.0. Plausible's official
+  community-edition v3.2.1 `compose.yml` ships `clickhouse/clickhouse-server:24.12-alpine` — that is
+  the supported pairing for CE v3.x (do NOT go to 25.x/26.x unless Plausible explicitly ships it).
+  The 23.4.x tags have aged off Docker Hub's paginated listing (the specific `23.4.2.11-alpine` tag
+  is still active but was last pushed 2023-05-04).
 - Recipe version label convention: `<recipe-semver>+<app-version>` (e.g. `3.0.1+v2.0.0`).
 - For postgres major upgrades: bump `DB_ENTRYPOINT_VERSION` in abra.sh to force config re-deploy
   if entrypoint script changes. Current is v1 (handles 13→14 and beyond via pg_upgrade).