U

_core_updated_successfully – action

_user_admin_menu – action

_wp_relative_upload_path – filter

$type_send_to_editor_url – filter

$type_upload_iframe_src – filter

add_user_role – action

add_user_to_blog – action

added_existing_user – action

added_usermeta – action

admin_head-media-upload-popup – action

admin_print_scripts-media-upload-popup – action

admin_print_styles-media-upload-popup – action

admin_url – filter

after_db_upgrade – action

after_mu_upgrade – action

after_signup_user – action

akismet_show_user_comments_approved – filter

akismet_ua – filter

allow_dev_auto_core_updates – filter

allow_major_auto_core_updates – filter

allow_minor_auto_core_updates – filter

async_update_translation – filter

async_upload_$type – filter

async_upload_audio – filter

async_upload_file – filter

async_upload_image – filter

async_upload_video – filter

attachment_updated – action

attachment_url_to_postid – filter

auth_cookie_bad_username – action

auto_core_update_email – filter

auto_core_update_send_email – filter

auto_update_$type – filter

autocomplete_users_for_site_admins – filter

automatic_updater_disabled – filter

automatic_updates_complete – action

automatic_updates_debug_email – filter

automatic_updates_is_vcs_checkout – filter

automatic_updates_send_debug_email – filter

bloginfo_url – filter

bulk_post_updated_messages – filter

can_add_user_to_blog – filter

check_is_user_spammed – filter

clean_url – filter

clean_user_cache – action

comment_add_author_url – action

comment_max_links_url – filter

comment_remove_author_url – action

comment_url – filter

content_url – filter

core_upgrade_preamble – action

customize_allowed_urls – filter

customize_update_$this – action

delete_user – action

delete_user_form – action

delete_usermeta – action

deleted_user – action

deleted_usermeta – action

determine_current_user – filter

do_mu_upgrade – filter

download_url_error_max_body_size – filter

edit_profile_url – filter

edit_user_$field – filter

edit_user_created_user – action

edit_user_profile – action

edit_user_profile_update – action

emoji_svg_url – filter

emoji_url – filter

enable_edit_any_user_configuration – filter

enable_update_services_configuration – filter

found_users_query – filter

get_avatar_url – filter

get_blogs_of_user – filter

get_canonical_url – filter

get_comment_author_url – filter

get_comment_author_url_link – filter

get_edit_user_link – filter

get_header_video_url – filter

get_page_uri – filter

get_site_icon_url – filter

get_user_option_$option – filter

get_usernumposts – filter

get_users_drafts – filter

got_url_rewrite – filter

home_url – filter

http_headers_useragent – filter

http_request_reject_unsafe_urls – filter

icon_dir_uri – filter

iis7_url_rewrite_rules – filter

illegal_user_logins – filter

image_send_to_editor_url – filter

import_allow_create_users – filter

import_upload_size_limit – filter

in_plugin_update_message-$file – action

in_theme_update_message-$theme_key – action

includes_url – filter

insert_user_meta – filter

install_plugins_pre_upload – action

install_plugins_upload – action

invite_user – action

is_email_address_unsafe – filter

load-update-core.php – action