diff --git a/changelog.md b/changelog.md
index ea49568..74fb564 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 2026-03-26 - 4.15.2 - fix(readme)
+adjust tunnel diagram alignment in the README
+
+- Improves formatting consistency in the Hub/Edge topology diagram.
+
 ## 2026-03-26 - 4.15.1 - fix(readme)
 clarify unified runtime configuration and firewall update behavior
 
diff --git a/readme.md b/readme.md
index 2634206..07c0896 100644
--- a/readme.md
+++ b/readme.md
@@ -17,7 +17,7 @@ pnpm install @serve.zone/remoteingress
 `@serve.zone/remoteingress` uses a **Hub/Edge** topology with a high-performance Rust core and a TypeScript API surface:
 
 ```
-                                   TLS or QUIC Tunnel
+                              TLS or QUIC Tunnel
 ┌─────────────────────┐  ◄══════════════════════════►  ┌─────────────────────┐
 │   Network Edge      │   TCP+TLS: frame mux           │   Private Cluster   │
 │                     │   QUIC:    native streams      │                     │
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 16b75e0..23b010f 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@serve.zone/remoteingress',
-  version: '4.15.1',
+  version: '4.15.2',
   description: 'Edge ingress tunnel for DcRouter - tunnels TCP and UDP traffic from the network edge to SmartProxy over TLS or QUIC, preserving client IP via PROXY protocol.'
 }