Add migration notes for Configure attribute

Author: othercorey

en/appendices/5-3-migration-guide.rst

@@ -74,6 +74,21 @@ Command
 - ``cake server`` now supports a ``--frankenphp`` option that will start the
   development server with `FrankenPHP <https://frankenphp.dev/>`__.
 
+Core
+----
+
+- Added ``Configure`` attribute to support injecting ``Configure`` values into
+  constructor promoted properties when resolving a class from container. Example:
+
+  .. code-block:: php
+
+    class InjectedService
+    {
+        public function __construct(
+            #[Configure('MyService.apiKey')] protected string $apiKey,
+        ) { }
+    }
+
 Cache
 -----
 

en/development/dependency-injection.rst

@@ -230,6 +230,26 @@ The ``ServiceConfig`` class provides a read-only view of all the data available
 in ``Configure`` so you don't have to worry about accidentally changing
 configuration.
 
+Injecting Configure Values
+----------------------------
+
+Configure values can also be injected into constructor promoted properties using
+the ``Cake\Core\Attribute\Configure`` attribute. This attribute takes the ``Configure``
+key as a parameter and the property will be set to that value when resolved.
+
+.. code-block:: php
+
+    use Cake\Core\Attribute\Configure;
+
+    class InjectedService
+    {
+        public function __construct(
+            #[Configure('MyService.apiKey')] protected string $apiKey,
+        ) { }
+    }
+
+.. versionadded:: 5.3.0
+
 Service Providers
 =================