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