Add CHANGELOG entry

src/Symfony/Component/HttpKernel/CHANGELOG.md

@@ -5,6 +5,28 @@ CHANGELOG
 -----
 
  * The `DebugHandlersListener` class has been marked as `final`
+ * Added new Bundle directory convention consistent with standard skeletons:
+
+    └── AcmeBundle
+        ├── config/
+        ├── public/
+        ├── src/
+        │   └── AcmeBundle.php
+        ├── templates/
+        └── translations/
+
+   To make this work properly, it is necessary to change the root path of the bundle:
+
+    class AcmeBundle extends Bundle
+    {
+        public function getPath()
+        {
+            return \dirname(__DIR__);
+        }
+    }
+
+   As bundles must be compatible with many Symfony versions we are not deprecating
+   the current directory convention yet, but it will be in future versions.
 
 4.3.0
 -----