| ⇢ | A | Object5 added |
| ⇢ | B | Argument::allows() added | |
| ⇢ | A | CallbackTest::argument_supports() added | |
| ⇢ | A | CallbackTest::argument_allows() added | |
| ⇢ | A | CallbackTest::invoke_with_non_parameters() added | |
| ⇢ | A | CallbackTest::invoke_with_too_few_parameters() added | |
| ⇢ | A | Argument::reflectionTypes() added | |
| ⇢ | A | Object5::__toString() added | |
| A | ↘ | B | Callback::invoke() got worse |
| A | ↘ | C | Argument::supports() got worse |