| ⇢ | A | NormalizeHost added |
| ⇢ | C | Version4::_vcl_director() added | |
| ⇢ | B | Version4::_vcl_directors() added | |
| ⇢ | B | Version4::_vcl_director_backend() added | |
| ⇢ | A | Abstract::_getCustomTemplateFilename() added | |
| ⇢ | A | NormalizeHost::toOptionArray() added | |
| ⇢ | A | Abstract::_vcl_sub_normalize_host_forwarded() added |