New plugin hooks in WordPress 5.0

Important! Some WordPress hooks get applied in multiple PHP files. If you are trying to figure out what a specific WordPress hook does, sort the table by "hook" and make sure you are looking in all the files where it occurs.

• To sort the table, click on a column title.
• Click a hook name to see details about the hook.
• Click a file name to see only hooks used in that file.

	Hook		Type	New?	Instances
1	add_inline_data		action	YES	1
2	akismet_batch_delete_count		action	YES	1
3	akismet_comment_form_privacy_notice		filter	YES	1
4	akismet_comment_form_privacy_notice_markup		filter	YES	1
5	akismet_comment_form_privacy_notice_url_display		filter	YES	1
6	akismet_comment_form_privacy_notice_url_hide		filter	YES	1
7	allowed_block_types		filter	YES	1
8	auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}	note	filter	YES	1
9	block_categories		filter	YES	1
10	block_editor_meta_box_hidden_fields		action	YES	1
11	block_editor_preload_paths		filter	YES	1
12	block_editor_settings		filter	YES	1
13	block_parser_class		filter	YES	1
14	delete_{$meta_type}_metadata_by_mid	note	filter	YES	1
15	determine_locale		filter	YES	1
16	enqueue_block_assets		action	YES	1
17	enqueue_block_editor_assets		action	YES	1
18	excerpt_allowed_blocks		filter	YES	1
19	filter_block_editor_meta_boxes		filter	YES	1
20	get_object_subtype_{$object_type}	note	filter	YES	1
21	get_{$meta_type}_metadata_by_mid	note	filter	YES	1
22	old_slug_redirect_post_id		filter	YES	1
23	pre_determine_locale		filter	YES	1
24	privacy_policy_url		filter	YES	1
25	render_block		filter	YES	1
26	rest_after_insert_attachment		action	YES	1
27	rest_after_insert_comment		action	YES	1
28	rest_after_insert_user		action	YES	1
29	rest_after_insert_{$this->post_type}	note	action	YES	1
30	rest_after_insert_{$this->taxonomy}	note	action	YES	1
31	rest_prepare_autosave		filter	YES	1
32	rest_prepare_theme		filter	YES	1
33	rest_revision_query		filter	YES	1
34	rest_themes_collection_params		filter	YES	1
35	sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}	note	filter	YES	1
36	theme_templates		filter	YES	1
37	the_privacy_policy_link		filter	YES	1
38	twentynineteen_attachment_size		filter	YES	1
39	twentynineteen_can_show_post_thumbnail		filter	YES	1
40	twentynineteen_content_width		filter	YES	1
41	twentynineteen_custom_colors_css		filter	YES	1
42	twentynineteen_custom_colors_lightness		filter	YES	1
43	twentynineteen_custom_colors_lightness_hover		filter	YES	1
44	twentynineteen_custom_colors_lightness_selection		filter	YES	1
45	twentynineteen_custom_colors_saturation		filter	YES	1
46	twentynineteen_custom_colors_saturation_selection		filter	YES	1
47	update_{$meta_type}_metadata_by_mid	note	filter	YES	1
48	update_{$meta_type}_metadata_cache	note	filter	YES	1
49	user_confirmed_action_email_content		filter	YES	1
50	user_erasure_complete_email_subject		filter	YES	1
51	user_erasure_fulfillment_email_to		filter	YES	1
52	user_request_action_confirmed		action	YES	1
53	user_request_action_confirmed_message		filter	YES	1
54	user_request_action_description		filter	YES	1
55	user_request_action_email_content		filter	YES	1
56	user_request_action_email_subject		filter	YES	1
57	user_request_confirmed_email_subject		filter	YES	1
58	user_request_confirmed_email_to		filter	YES	1
59	user_request_key_expiration		filter	YES	1
60	use_block_editor_for_post		filter	YES	1
61	use_block_editor_for_post_type		filter	YES	1
62	wp_anonymize_comment		filter	YES	1
63	wp_get_default_privacy_policy_content		filter	YES	1
64	wp_privacy_anonymize_data		filter	YES	1
65	wp_privacy_exports_dir		filter	YES	1
66	wp_privacy_exports_url		filter	YES	1
67	wp_privacy_export_expiration		filter	YES	1
68	wp_privacy_personal_data_email_content		filter	YES	1
69	wp_privacy_personal_data_erased		action	YES	1
70	wp_privacy_personal_data_erasers		filter	YES	1
71	wp_privacy_personal_data_erasure_page		filter	YES	1
72	wp_privacy_personal_data_exporters		filter	YES	1
73	wp_privacy_personal_data_export_file		action	YES	1
74	wp_privacy_personal_data_export_file_created		action	YES	1
75	wp_privacy_personal_data_export_page		filter	YES	1
76	wp_rest_search_handlers		filter	YES	1
77	write_your_story		filter	YES	1

Important warning about variable hooks

Some hooks have variables in their names. For example, pre_${taxonomy}_$field and admin_head- both have variable names. In general, any hook that ends (or begins) with - or _, or contains a $, has a variable name. Since the syntax with which these variables are defined may change from version to version, this page may think that a hook is deprecated (or new) even if it is not. You can usually catch this sort of thing by comparing this hook to the list of "related hooks" below.