# core_message (subsystem) Upgrade notes ## 4.5.7 ### Added - The `contexturl` property to `\core\message\message` instances can now contain `\core\url` values in addition to plain strings For more information see [MDL-83080](https://tracker.moodle.org/browse/MDL-83080) ## 4.5.6 ### Added - The web service `core_message_get_member_info` additionally returns `cancreatecontact` which is a boolean value for a user's permission to add a contact. For more information see [MDL-72123](https://tracker.moodle.org/browse/MDL-72123) ## 4.5 ### Changed - The `\core_message\helper::togglecontact_link_params()` method now accepts a new optional `$isrequested` parameter to indicate the status of the contact request. For more information see [MDL-81428](https://tracker.moodle.org/browse/MDL-81428) ### Deprecated - The `core_message/remove_contact_button` template is deprecated and will be removed in a future release. For more information see [MDL-81428](https://tracker.moodle.org/browse/MDL-81428) ### Removed - Final deprecation of the `MESSAGE_DEFAULT_LOGGEDOFF`, and `MESSAGE_DEFAULT_LOGGEDIN` constants. For more information see [MDL-73284](https://tracker.moodle.org/browse/MDL-73284)