Add mention of load_class and is_class_loaded to Delta

[gitmo/Moose.git] / lib / Moose / Manual / Delta.pod

diff --git a/lib/Moose/Manual/Delta.pod b/lib/Moose/Manual/Delta.pod
index 832a35d..6859723 100644 (file)
--- a/lib/Moose/Manual/Delta.pod
+++ b/lib/Moose/Manual/Delta.pod
@@ -23,11 +23,35 @@ send us a patch.
 
 =over 4
 
+=item The parent of a union type is its components' nearest common ancestor
+
+Previously, union types considered all of their component types their parent
+types. This was incorrect because parent types are defined as types that must
+be satisfied in order for the child type to be satisfied, but in a union,
+validating as any parent type will validate against the entire union. This has
+been changed to find the nearest common ancestor for all of its components. For
+example, a union of "Int|ArrayRef[Int]" now has a parent of "Defined".
+
 =item Union types consider all members in the C<is_subtype_of> and C<is_a_type_of> methods
 
-Previously, a union type would report itself as being of a subtype of a type
-if I<any> of its member types were subtypes of that type. This has changed
-so that I<all> of its member types must be a subtype of the specified type.
+Previously, a union type would report itself as being of a subtype of a type if
+I<any> of its member types were subtypes of that type. This was incorrect
+because any value that passes a subtype constraint must also pass a parent
+constraint. This has changed so that I<all> of its member types must be a
+subtype of the specified type.
+
+=item Enum types now work with just one value
+
+Previously, an C<enum> type needed to have two or more values.  Nobody knew
+why, so we fixed it.
+
+=item Methods defined in UNIVERSAL now appear in the MOP
+
+Any method introspection methods that look at methods from parent classes now
+find methods defined in UNIVERSAL. This includes methods like C<<
+$class->get_all_methods >> and C<< $class->find_method_by_name >>.
+
+This also means that you can now apply method modifiers to these methods.
 
 =item Hand-optimized type constraint code causes a deprecation warning
 
@@ -38,6 +62,13 @@ L<Moose::Meta::TypeConstraint> object directly.
 
 Use the inlining feature (C<inline_as>) added in 2.0100 instead.
 
+=item C<Class::Load::load_class> and C<is_class_loaded> have been removed
+
+The C<Class::MOP::load_class> and C<Class::MOP::is_class_loaded> subroutines
+are no longer documented, and will cause a deprecation warning in the
+future. Moose now uses L<Class::Load> to provide this functionality, and you
+should do so as well.
+
 =back
 
 =head1 2.0205