| ⇢ | A | UserPrincipalSingleResponse added |
| ⇢ | B | AbstractCalDAVResponse::stripNamespacesFromTags() added | |
| ⇢ | A | UserPrincipalSingleResponse::getPrincipalUrl() added | |
| ⇢ | A | UserPrincipalResponse::buildSingleResponse() added | |
| A | ↛ | UserPrincipalResponse::getPrincipalUrl() removed |