# core_user (subsystem) Upgrade notes ## 4.5dev+ ### Deprecated - The participants_search::get_total_participants_count() is no longer used since the total count can be obtained from ::get_participants() For more information see [MDL-78030](https://tracker.moodle.org/browse/MDL-78030) ### Changed - The visibility of the methods: check_access_for_dynamic_submission() and get_options() in core_user\form\private_files has been changed from protected to public. For more information see [MDL-78293](https://tracker.moodle.org/browse/MDL-78293) ### Added - New `\core_user\hook\extend_default_homepage` hook added to allow third-party plugins to extend the default homepage options for the site For more information see [MDL-82066](https://tracker.moodle.org/browse/MDL-82066)