Deprecated plugin hooks in WordPress 3.1

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	Renamed?
1	author_template		filter	DEPRECATED
2	category_rewrite_rules		filter	DEPRECATED
3	category_template		filter	DEPRECATED
4	comments_popup_template		filter	DEPRECATED
5	edit_{$taxonomy}_per_page	note	filter	DEPRECATED
6	front_page_template		filter	DEPRECATED
7	hierarchical_post_types		filter	DEPRECATED
8	home_template		filter	DEPRECATED
9	link_cat_row_actions		filter	DEPRECATED
10	manage_blogs_custom_column		action	DEPRECATED
11	manage_link_categories_custom_column		filter	DEPRECATED
12	manage_{$taxonomy}_custom_column	note	filter	DEPRECATED
13	ms_sites_per_page		filter	DEPRECATED
14	ms_users_per_page		filter	DEPRECATED
15	page_template		filter	DEPRECATED
16	password_reset_message		filter	DEPRECATED
17	password_reset_title		filter	DEPRECATED
18	plugins_per_page		filter	DEPRECATED
19	plugin_action_links		filter	DEPRECATED
20	plugin_action_links_{$plugin_file}	note	filter	DEPRECATED
21	show_adduser_fields		filter	DEPRECATED
22	single_template		filter	DEPRECATED
23	tag_template		filter	DEPRECATED
24	taxonomy_template		filter	DEPRECATED

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.