Classes
- 
            namespace DeprecatedFoo deprecated since 2010.02 A namespace.
            - class DeprecatedClass deprecated since 2010.02 A class.
- struct DeprecatedSubclass deprecated since 2010.02 A subclass.
 
- 
            namespace Foo since 2010.02 A namespace.
            - class Class since 2019.11 A class.
- struct Subclass since 2019.11 A subclass.