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_upgrade_422_find_genericons_files_in_folder() – Recursively find Genericons example files in a given folder.

_upgrade_422_remove_genericons() – Cleans up Genericons example files.

_upgrade_440_force_deactivate_incompatible_plugins() –

blog_redirect_404 – filter

Custom_Image_Header::js_1() – Display JavaScript based on Step 1 and 3.

Custom_Image_Header::js_2() – Display JavaScript based on Step 2.

Custom_Image_Header::step_1() – Display first step of custom header image page.

Custom_Image_Header::step_2_manage_upload() – Upload the file to be cropped in the second step.

Custom_Image_Header::step_2() – Display second step of custom header image page.

Custom_Image_Header::step_3() – Display third step of custom header image page.

frontend/class-handle-404.php

get_404_template() – Retrieve path of 404 template in current or parent template.

get_alloptions_110() – Retrieve all options as it was for 1.2.

is_404() – Is the query a 404 (returns no results)?

is_lighttpd_before_150() – Is the server running earlier than 1.5.0 version of lighttpd?

maybe_redirect_404() – Correct 404 redirects when NOBLOGREDIRECT is defined.

mce_buttons_2 – filter

mce_buttons_3 – filter

mce_buttons_4 – filter

migrations/20171228151840_WpYoastIndexable.php

migrations/20171228151841_WpYoastPrimaryTerm.php

migrations/20180515101200_WpYoastIndexableMeta.php

migrations/20190529075038_WpYoastDropIndexableMetaTableIfExists.php

migrations/20190529075734_WpYoastExpandIndexable.php

populate_roles_160() – Create the roles for WordPress 2.0

populate_roles_210() – Create and modify WordPress roles for WordPress 2.1.

populate_roles_230() – Create and modify WordPress roles for WordPress 2.3.

populate_roles_250() – Create and modify WordPress roles for WordPress 2.5.

populate_roles_260() – Create and modify WordPress roles for WordPress 2.6.

populate_roles_270() – Create and modify WordPress roles for WordPress 2.7.

populate_roles_280() – Create and modify WordPress roles for WordPress 2.8.

populate_roles_300() – Create and modify WordPress roles for WordPress 3.0.

pre_handle_404 – filter

redirect_guess_404_permalink() – Attempts to guess the correct URL based on query vars

Requests_Exception_HTTP_304

Requests_Exception_HTTP_305

Requests_Exception_HTTP_306

Requests_Exception_HTTP_400

Requests_Exception_HTTP_401

Requests_Exception_HTTP_402

Requests_Exception_HTTP_403

Requests_Exception_HTTP_404

Requests_Exception_HTTP_405

Requests_Exception_HTTP_406

Requests_Exception_HTTP_407

Requests_Exception_HTTP_408

Requests_Exception_HTTP_409

Requests_Exception_HTTP_410

Requests_Exception_HTTP_411

Requests_Exception_HTTP_412

Requests_Exception_HTTP_413

Requests_Exception_HTTP_414

Requests_Exception_HTTP_415

Requests_Exception_HTTP_416

Requests_Exception_HTTP_417

Requests_Exception_HTTP_418

Requests_Exception_HTTP_428

Requests_Exception_HTTP_429

Requests_Exception_HTTP_431

Requests_Exception_HTTP_500

Requests_Exception_HTTP_501

Requests_Exception_HTTP_502

Requests_Exception_HTTP_503

Requests_Exception_HTTP_504

Requests_Exception_HTTP_505

Requests_Exception_HTTP_511

SimplePie_Misc::atom_03_construct_type() –

SimplePie_Misc::atom_10_construct_type() –

SimplePie_Misc::atom_10_content_construct_type() –

SimplePie_Misc::windows_1252_to_utf8() – Converts a Windows-1252 encoded string to a UTF-8 encoded string

upgrade_100() – Execute changes made in WordPress 1.0.

upgrade_101() – Execute changes made in WordPress 1.0.1.

upgrade_110() – Execute changes made in WordPress 1.2.

upgrade_130() – Execute changes made in WordPress 1.5.

upgrade_160() – Execute changes made in WordPress 2.0.

upgrade_210() – Execute changes made in WordPress 2.1.

upgrade_230_old_tables() – Remove old categories, link2cat, and post2cat database tables.

upgrade_230_options_table() – Remove old options from the database.

upgrade_230() – Execute changes made in WordPress 2.3.

upgrade_250() – Execute changes made in WordPress 2.5.0.

upgrade_252() – Execute changes made in WordPress 2.5.2.

upgrade_260() – Execute changes made in WordPress 2.6.

upgrade_270() – Execute changes made in WordPress 2.7.

upgrade_280() – Execute changes made in WordPress 2.8.

upgrade_290() – Execute changes made in WordPress 2.9.

upgrade_300() – Execute changes made in WordPress 3.0.

upgrade_330() – Execute changes made in WordPress 3.3.

upgrade_340() – Execute changes made in WordPress 3.4.

upgrade_350() – Execute changes made in WordPress 3.5.

upgrade_370() – Execute changes made in WordPress 3.7.

upgrade_372() – Execute changes made in WordPress 3.7.2.

upgrade_380() – Execute changes made in WordPress 3.8.0.

upgrade_400() – Execute changes made in WordPress 4.0.0.

upgrade_420() – Execute changes made in WordPress 4.2.0.

upgrade_430_fix_comments() – Executes comments changes made in WordPress 4.3.0.

upgrade_430() – Executes changes made in WordPress 4.3.0.

upgrade_431() – Executes changes made in WordPress 4.3.1.

upgrade_440() – Executes changes made in WordPress 4.4.0.

upgrade_450() – Executes changes made in WordPress 4.5.0.

upgrade_460() – Executes changes made in WordPress 4.6.0.

upgrade_500() – Executes changes made in WordPress 5.0.0.

upgrade_510() – Executes changes made in WordPress 5.1.0.