diff --git a/abra.sh b/abra.sh
index ea81aaa..0de2fd9 100644
--- a/abra.sh
+++ b/abra.sh
@@ -1,4 +1,5 @@
 export CLICKHOUSE_CONF_VERSION=v2
 export CLICKHOUSE_USER_CONF_VERSION=v2
+export CLICKHOUSE_IPV4_ONLY_VERSION=v1
 export DB_ENTRYPOINT_VERSION=v1
 export CLICKHOUSE_ENTRYPOINT_VERSION=v2
diff --git a/clickhouse-ipv4-only.xml b/clickhouse-ipv4-only.xml
new file mode 100644
index 0000000..7eb0a5c
--- /dev/null
+++ b/clickhouse-ipv4-only.xml
@@ -0,0 +1,3 @@
+<clickhouse>
+    <listen_host>0.0.0.0</listen_host>
+</clickhouse>
diff --git a/compose.yml b/compose.yml
index 44d89bc..30f7544 100644
--- a/compose.yml
+++ b/compose.yml
@@ -69,6 +69,8 @@ services:
         target: /etc/clickhouse-server/config.d/logging.xml
       - source: clickhouse-user-config
         target: /etc/clickhouse-server/users.d/clickhouse-user-config.xml
+      - source: clickhouse-ipv4-only
+        target: /etc/clickhouse-server/config.d/ipv4-only.xml
       - source: clickhouse_entrypoint
         target: /custom-entrypoint.sh
         mode: 0555
@@ -103,6 +105,9 @@ configs:
     name: ${STACK_NAME}_db_entrypoint_${DB_ENTRYPOINT_VERSION}
     file: entrypoint.postgres.sh.tmpl
     template_driver: golang
+  clickhouse-ipv4-only:
+    name: ${STACK_NAME}_clickhouse_ipv4_only_${CLICKHOUSE_IPV4_ONLY_VERSION}
+    file: clickhouse-ipv4-only.xml
   clickhouse_entrypoint:
     name: ${STACK_NAME}_clickhouse_entrypoint_${CLICKHOUSE_ENTRYPOINT_VERSION}
     file: entrypoint.clickhouse.sh
diff --git a/release/4.0.0+v2.1.5 b/release/4.0.0+v2.1.5
deleted file mode 100644
index 9b4bb78..0000000
--- a/release/4.0.0+v2.1.5
+++ /dev/null
@@ -1,19 +0,0 @@
-⚠ OPERATOR ACTION REQUIRED ⚠
-
-This major version upgrade changes:
-
-1. TOTP_VAULT_KEY is now REQUIRED. Generate with:
-   openssl rand -base64 32
-   Add to your app environment config before deploying.
-
-2. Plausible image moved from Docker Hub (plausible/analytics)
-   to GitHub Container Registry (ghcr.io/plausible/community-edition).
-
-3. PostgreSQL upgraded from 13 → 16 (major version jump).
-   The recipe handles this automatically via pg_upgrade on first boot.
-   Take a volume backup before upgrading!
-
-4. ClickHouse upgraded from 23.4 → 24.3 (data-compatible upgrade).
-
-See upstream upgrade notes:
-https://github.com/plausible/analytics/releases/tag/v2.1.0