Merge branch '6.3' into 6.4

* 6.3:
  -
  fix: serializer includes only accessible attributes by default

Author: OskarStark

components/serializer.rst

@@ -461,8 +461,8 @@ As for groups, attributes can be selected during both the serialization and dese
 Ignoring Attributes
 -------------------
 
-All attributes are included by default when serializing objects. There are two
-options to ignore some of those attributes.
+All accessible attributes are included by default when serializing objects.
+There are two options to ignore some of those attributes.
 
 Option 1: Using ``#[Ignore]`` Attribute
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~