Bug #43260 for Class-MOP: Class::MOP does not provide a minimum version

Class::MOP does not currently dictate a minimum perl version required to use it. A brief inspection suggests that this is at least 5.6.0 (from the our $VERSION alone). Running perlver over it also produces the following. --------------------------------------------------------------------------------- | file | explicit | syntax | external | | --------------------------------------------------------------------------------- | | Build.PL | ~ | ~ | n/a | | Makefile.PL | ~ | ~ | n/a | | lib/metaclass.pm | ~ | v5.6.0 | n/a | | lib/Class/MOP.pm | ~ | v5.6.0 | n/a | | lib/Class/MOP/Attribute.pm | ~ | v5.6.0 | n/a | | lib/Class/MOP/Class.pm | ~ | v5.6.0 | n/a | | lib/Class/MOP/Instance.pm | ~ | v5.6.0 | n/a | | lib/Class/MOP/Method.pm | ~ | v5.6.0 | n/a | | lib/Class/MOP/Module.pm | ~ | v5.6.0 | n/a | | lib/Class/MOP/Package.pm | ~ | v5.6.0 | n/a | | lib/Class/MOP/Class/Immutable.pm | ~ | v5.6.0 | n/a | | t/000_load.t | ~ | v5.6.0 | n/a | | t/001_basic.t | ~ | v5.6.0 | n/a | | t/002_class_precedence_list.t | ~ | v5.6.0 | n/a | | t/003_methods.t | ~ | v5.6.0 | n/a | | t/004_advanced_methods.t | ~ | v5.6.0 | n/a | | t/005_attributes.t | ~ | v5.6.0 | n/a | | t/006_new_and_clone_metaclasses.t | ~ | v5.6.0 | n/a | | t/010_self_introspection.t | ~ | v5.6.0 | n/a | | t/011_create_class.t | ~ | v5.6.0 | n/a | | t/012_package_variables.t | ~ | v5.6.0 | n/a | | t/013_add_attribute_alternate.t | ~ | v5.6.0 | n/a | | t/014_attribute_introspection.t | ~ | v5.6.0 | n/a | | t/015_metaclass_inheritance.t | ~ | v5.6.0 | n/a | | t/016_class_errors_and_edge_cases.t | ~ | v5.6.0 | n/a | | t/017_add_method_modifier.t | ~ | v5.6.0 | n/a | | t/018_anon_class.t | ~ | v5.6.0 | n/a | | t/020_attribute.t | ~ | v5.6.0 | n/a | | t/021_attribute_errors_and_edge_cases.t | ~ | v5.6.0 | n/a | | t/030_method.t | ~ | v5.6.0 | n/a | | t/031_method_modifiers.t | ~ | v5.6.0 | n/a | | t/040_metaclass.t | ~ | v5.6.0 | n/a | | t/041_metaclass_incompatability.t | ~ | v5.6.0 | n/a | | t/042_metaclass_incompatibility_dynamic.t | ~ | v5.6.0 | n/a | | t/043_instance_metaclass_incompatibility.t | ~ | v5.6.0 | n/a | | t/044_instance_metaclass_incompatibility_dynamic.t | ~ | v5.6.0 | n/a | | t/050_scala_style_mixin_composition.t | ~ | v5.6.0 | n/a | | t/060_instance.t | ~ | v5.6.0 | n/a | | t/061_instance_inline.t | ~ | v5.6.0 | n/a | | t/070_immutable_metaclass.t | ~ | v5.6.0 | n/a | | t/071_immutable_w_custom_metaclass.t | ~ | v5.6.0 | n/a | | t/080_meta_package.t | ~ | v5.6.0 | n/a | | t/100_BinaryTree_test.t | ~ | v5.6.0 | n/a | | t/101_InstanceCountingClass_test.t | ~ | v5.6.0 | n/a | | t/102_InsideOutClass_test.t | ~ | v5.6.0 | n/a | | t/103_Perl6Attribute_test.t | ~ | v5.6.0 | n/a | | t/104_AttributesWithHistory_test.t | ~ | v5.6.0 | n/a | | t/105_ClassEncapsulatedAttributes_test.t | ~ | v5.6.0 | n/a | | t/106_LazyClass_test.t | ~ | v5.6.0 | n/a | | t/107_C3MethodDispatchOrder_test.t | ~ | v5.6.0 | n/a | | t/108_ArrayBasedStorage_test.t | ~ | v5.6.0 | n/a | | t/200_Class_C3_compatibility.t | ~ | v5.6.0 | n/a | | t/300_random_eval_bug.t | ~ | v5.6.0 | n/a | | t/pod.t | ~ | v5.6.0 | n/a | | t/pod_coverage.t | ~ | v5.6.0 | n/a | | t/lib/BinaryTree.pm | ~ | v5.6.0 | n/a | | --------------------------------------------------------------------------------- | | Minimum explicit version : ~ | | Minimum syntax version : v5.6.0 | | Minimum version of perl : v5.6.0 | --------------------------------------------------------------------------------- In any case, it might be a good idea to add the explicit version dependency. One entry in the Makefile.PL and a "use 5.006" in the main MOP.pm should be enough.

Thanks Adam, this has been applied and will be in the next release.