deploy: 63c10a51fc

api/basic_json/items.md

@@ -114,3 +114,5 @@ When iterating over an array, `key()` will return the index of the element as st
 
     You should be warned by your compiler with a `-Wdeprecated-declarations` warning if you are using a deprecated
     function.
+
+    See the [migration guide](../../integration/migration_guide.md#miscellaneous-functions) for how to update existing code.