| ⇢ | A | Authenticator added | |
| A | ↛ | Authenticator removed |
| ⇢ | B | Authenticator::authenticate() added | |
| ⇢ | A | Authenticator::getToken() added | |
| ⇢ | A | Authenticator::isApplicable() added | |
| B | ↛ | Authenticator::authenticate() removed | |
| A | ↛ | Authenticator::getToken() removed | |
| A | ↛ | Authenticator::isApplicable() removed |