Changelog update. Fixed phpDoc comment.

framework/CHANGELOG.md

@@ -22,6 +22,7 @@ Yii Framework 2 Change Log
 - Enh #12790: Added `scrollToErrorOffset` option for `ActiveForm` which adds ability to specify offset in pixels when scrolling to error (mg-code)
 - Enh #12748: Migration generator now tries to fetch reference column name for foreignKey from schema if it's not set explicitly (MKiselev)
 - Bug #4113: Error page stacktrace was generating links to private methods which are not part of the API docs (samdark)
+- Enh #12901: Added `getDefaultHelpHeader` method to the `yii\console\controllers\HelpController` class to be able to override default help header in a class heir (diezztsk)
 
 2.0.10 October 20, 2016
 -----------------------

framework/console/controllers/HelpController.php

@@ -439,8 +439,9 @@ class HelpController extends Controller
     }
 
     /**
-     * Display a default help header.
+     * Return a default help header.
      * @return string default help header.
+     * @since 2.0.11
      */
     protected function getDefaultHelpHeader()
     {