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<?php

/**
 * WordPress core upgrade functionality.
 *
 * @package WordPress
 * @subpackage Administration
 * @since 2.7.0
 */


/**
 * Stores files to be deleted.
 *
 * @since 2.7.0
 *
 * @global array $_old_files
 * @var array
 * @name $_old_files
 */
global $_old_files;

$_old_files = array(
  // 2.0
  'wp-admin/import-b2.php',
  'wp-admin/import-blogger.php',
  'wp-admin/import-greymatter.php',
  'wp-admin/import-livejournal.php',
  'wp-admin/import-mt.php',
  'wp-admin/import-rss.php',
  'wp-admin/import-textpattern.php',
  'wp-admin/quicktags.js',
  'wp-images/fade-butt.png',
  'wp-images/get-firefox.png',
  'wp-images/header-shadow.png',
  'wp-images/smilies',
  'wp-images/wp-small.png',
  'wp-images/wpminilogo.png',
  'wp.php',
  // 2.0.8
  'wp-includes/js/tinymce/plugins/inlinepopups/readme.txt',
  // 2.1
  'wp-admin/edit-form-ajax-cat.php',
  'wp-admin/execute-pings.php',
  'wp-admin/inline-uploading.php',
  'wp-admin/link-categories.php',
  'wp-admin/list-manipulation.js',
  'wp-admin/list-manipulation.php',
  'wp-includes/comment-functions.php',
  'wp-includes/feed-functions.php',
  'wp-includes/functions-compat.php',
  'wp-includes/functions-formatting.php',
  'wp-includes/functions-post.php',
  'wp-includes/js/dbx-key.js',
  'wp-includes/js/tinymce/plugins/autosave/langs/cs.js',
  'wp-includes/js/tinymce/plugins/autosave/langs/sv.js',
  'wp-includes/links.php',
  'wp-includes/pluggable-functions.php',
  'wp-includes/template-functions-author.php',
  'wp-includes/template-functions-category.php',
  'wp-includes/template-functions-general.php',
  'wp-includes/template-functions-links.php',
  'wp-includes/template-functions-post.php',
  'wp-includes/wp-l10n.php',
  // 2.2
  'wp-admin/cat-js.php',
  'wp-admin/import/b2.php',
  'wp-includes/js/autosave-js.php',
  'wp-includes/js/list-manipulation-js.php',
  'wp-includes/js/wp-ajax-js.php',
  // 2.3
  'wp-admin/admin-db.php',
  'wp-admin/cat.js',
  'wp-admin/categories.js',
  'wp-admin/custom-fields.js',
  'wp-admin/dbx-admin-key.js',
  'wp-admin/edit-comments.js',
  'wp-admin/install-rtl.css',
  'wp-admin/install.css',
  'wp-admin/upgrade-schema.php',
  'wp-admin/upload-functions.php',
  'wp-admin/upload-rtl.css',
  'wp-admin/upload.css',
  'wp-admin/upload.js',
  'wp-admin/users.js',
  'wp-admin/widgets-rtl.css',
  'wp-admin/widgets.css',
  'wp-admin/xfn.js',
  'wp-includes/js/tinymce/license.html',
  // 2.5
  'wp-admin/css/upload.css',
  'wp-admin/images/box-bg-left.gif',
  'wp-admin/images/box-bg-right.gif',
  'wp-admin/images/box-bg.gif',
  'wp-admin/images/box-butt-left.gif',
  'wp-admin/images/box-butt-right.gif',
  'wp-admin/images/box-butt.gif',
  'wp-admin/images/box-head-left.gif',
  'wp-admin/images/box-head-right.gif',
  'wp-admin/images/box-head.gif',
  'wp-admin/images/heading-bg.gif',
  'wp-admin/images/login-bkg-bottom.gif',
  'wp-admin/images/login-bkg-tile.gif',
  'wp-admin/images/notice.gif',
  'wp-admin/images/toggle.gif',
  'wp-admin/includes/upload.php',
  'wp-admin/js/dbx-admin-key.js',
  'wp-admin/js/link-cat.js',
  'wp-admin/profile-update.php',
  'wp-admin/templates.php',
  'wp-includes/images/wlw/WpComments.png',
  'wp-includes/images/wlw/WpIcon.png',
  'wp-includes/images/wlw/WpWatermark.png',
  'wp-includes/js/dbx.js',
  'wp-includes/js/fat.js',
  'wp-includes/js/list-manipulation.js',
  'wp-includes/js/tinymce/langs/en.js',
  'wp-includes/js/tinymce/plugins/autosave/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/autosave/langs',
  'wp-includes/js/tinymce/plugins/directionality/images',
  'wp-includes/js/tinymce/plugins/directionality/langs',
  'wp-includes/js/tinymce/plugins/inlinepopups/css',
  'wp-includes/js/tinymce/plugins/inlinepopups/images',
  'wp-includes/js/tinymce/plugins/inlinepopups/jscripts',
  'wp-includes/js/tinymce/plugins/paste/images',
  'wp-includes/js/tinymce/plugins/paste/jscripts',
  'wp-includes/js/tinymce/plugins/paste/langs',
  'wp-includes/js/tinymce/plugins/spellchecker/classes/HttpClient.class.php',
  'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyGoogleSpell.class.php',
  'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspell.class.php',
  'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspellShell.class.php',
  'wp-includes/js/tinymce/plugins/spellchecker/css/spellchecker.css',
  'wp-includes/js/tinymce/plugins/spellchecker/images',
  'wp-includes/js/tinymce/plugins/spellchecker/langs',
  'wp-includes/js/tinymce/plugins/spellchecker/tinyspell.php',
  'wp-includes/js/tinymce/plugins/wordpress/images',
  'wp-includes/js/tinymce/plugins/wordpress/langs',
  'wp-includes/js/tinymce/plugins/wordpress/wordpress.css',
  'wp-includes/js/tinymce/plugins/wphelp',
  'wp-includes/js/tinymce/themes/advanced/css',
  'wp-includes/js/tinymce/themes/advanced/images',
  'wp-includes/js/tinymce/themes/advanced/jscripts',
  'wp-includes/js/tinymce/themes/advanced/langs',
  // 2.5.1
  'wp-includes/js/tinymce/tiny_mce_gzip.php',
  // 2.6
  'wp-admin/bookmarklet.php',
  'wp-includes/js/jquery/jquery.dimensions.min.js',
  'wp-includes/js/tinymce/plugins/wordpress/popups.css',
  'wp-includes/js/wp-ajax.js',
  // 2.7
  'wp-admin/css/press-this-ie-rtl.css',
  'wp-admin/css/press-this-ie.css',
  'wp-admin/css/upload-rtl.css',
  'wp-admin/edit-form.php',
  'wp-admin/images/comment-pill.gif',
  'wp-admin/images/comment-stalk-classic.gif',
  'wp-admin/images/comment-stalk-fresh.gif',
  'wp-admin/images/comment-stalk-rtl.gif',
  'wp-admin/images/del.png',
  'wp-admin/images/gear.png',
  'wp-admin/images/media-button-gallery.gif',
  'wp-admin/images/media-buttons.gif',
  'wp-admin/images/postbox-bg.gif',
  'wp-admin/images/tab.png',
  'wp-admin/images/tail.gif',
  'wp-admin/js/forms.js',
  'wp-admin/js/upload.js',
  'wp-admin/link-import.php',
  'wp-includes/images/audio.png',
  'wp-includes/images/css.png',
  'wp-includes/images/default.png',
  'wp-includes/images/doc.png',
  'wp-includes/images/exe.png',
  'wp-includes/images/html.png',
  'wp-includes/images/js.png',
  'wp-includes/images/pdf.png',
  'wp-includes/images/swf.png',
  'wp-includes/images/tar.png',
  'wp-includes/images/text.png',
  'wp-includes/images/video.png',
  'wp-includes/images/zip.png',
  'wp-includes/js/tinymce/tiny_mce_config.php',
  'wp-includes/js/tinymce/tiny_mce_ext.js',
  // 2.8
  'wp-admin/js/users.js',
  'wp-includes/js/swfupload/plugins/swfupload.documentready.js',
  'wp-includes/js/swfupload/plugins/swfupload.graceful_degradation.js',
  'wp-includes/js/swfupload/swfupload_f9.swf',
  'wp-includes/js/tinymce/plugins/autosave',
  'wp-includes/js/tinymce/plugins/paste/css',
  'wp-includes/js/tinymce/utils/mclayer.js',
  'wp-includes/js/tinymce/wordpress.css',
  // 2.8.5
  'wp-admin/import/btt.php',
  'wp-admin/import/jkw.php',
  // 2.9
  'wp-admin/js/page.dev.js',
  'wp-admin/js/page.js',
  'wp-admin/js/set-post-thumbnail-handler.dev.js',
  'wp-admin/js/set-post-thumbnail-handler.js',
  'wp-admin/js/slug.dev.js',
  'wp-admin/js/slug.js',
  'wp-includes/gettext.php',
  'wp-includes/js/tinymce/plugins/wordpress/js',
  'wp-includes/streams.php',
  // MU
  'README.txt',
  'htaccess.dist',
  'index-install.php',
  'wp-admin/css/mu-rtl.css',
  'wp-admin/css/mu.css',
  'wp-admin/images/site-admin.png',
  'wp-admin/includes/mu.php',
  'wp-admin/wpmu-admin.php',
  'wp-admin/wpmu-blogs.php',
  'wp-admin/wpmu-edit.php',
  'wp-admin/wpmu-options.php',
  'wp-admin/wpmu-themes.php',
  'wp-admin/wpmu-upgrade-site.php',
  'wp-admin/wpmu-users.php',
  'wp-includes/images/wordpress-mu.png',
  'wp-includes/wpmu-default-filters.php',
  'wp-includes/wpmu-functions.php',
  'wpmu-settings.php',
  // 3.0
  'wp-admin/categories.php',
  'wp-admin/edit-category-form.php',
  'wp-admin/edit-page-form.php',
  'wp-admin/edit-pages.php',
  'wp-admin/images/admin-header-footer.png',
  'wp-admin/images/browse-happy.gif',
  'wp-admin/images/ico-add.png',
  'wp-admin/images/ico-close.png',
  'wp-admin/images/ico-edit.png',
  'wp-admin/images/ico-viewpage.png',
  'wp-admin/images/fav-top.png',
  'wp-admin/images/screen-options-left.gif',
  'wp-admin/images/wp-logo-vs.gif',
  'wp-admin/images/wp-logo.gif',
  'wp-admin/import',
  'wp-admin/js/wp-gears.dev.js',
  'wp-admin/js/wp-gears.js',
  'wp-admin/options-misc.php',
  'wp-admin/page-new.php',
  'wp-admin/page.php',
  'wp-admin/rtl.css',
  'wp-admin/rtl.dev.css',
  'wp-admin/update-links.php',
  'wp-admin/wp-admin.css',
  'wp-admin/wp-admin.dev.css',
  'wp-includes/js/codepress',
  'wp-includes/js/codepress/engines/khtml.js',
  'wp-includes/js/codepress/engines/older.js',
  'wp-includes/js/jquery/autocomplete.dev.js',
  'wp-includes/js/jquery/autocomplete.js',
  'wp-includes/js/jquery/interface.js',
  'wp-includes/js/scriptaculous/prototype.js',
  // Following file added back in 5.1, see #45645.
  //'wp-includes/js/tinymce/wp-tinymce.js',
  // 3.1
  'wp-admin/edit-attachment-rows.php',
  'wp-admin/edit-link-categories.php',
  'wp-admin/edit-link-category-form.php',
  'wp-admin/edit-post-rows.php',
  'wp-admin/images/button-grad-active-vs.png',
  'wp-admin/images/button-grad-vs.png',
  'wp-admin/images/fav-arrow-vs-rtl.gif',
  'wp-admin/images/fav-arrow-vs.gif',
  'wp-admin/images/fav-top-vs.gif',
  'wp-admin/images/list-vs.png',
  'wp-admin/images/screen-options-right-up.gif',
  'wp-admin/images/screen-options-right.gif',
  'wp-admin/images/visit-site-button-grad-vs.gif',
  'wp-admin/images/visit-site-button-grad.gif',
  'wp-admin/link-category.php',
  'wp-admin/sidebar.php',
  'wp-includes/classes.php',
  'wp-includes/js/tinymce/blank.htm',
  'wp-includes/js/tinymce/plugins/media/css/content.css',
  'wp-includes/js/tinymce/plugins/media/img',
  'wp-includes/js/tinymce/plugins/safari',
  // 3.2
  'wp-admin/images/logo-login.gif',
  'wp-admin/images/star.gif',
  'wp-admin/js/list-table.dev.js',
  'wp-admin/js/list-table.js',
  'wp-includes/default-embeds.php',
  'wp-includes/js/tinymce/plugins/wordpress/img/help.gif',
  'wp-includes/js/tinymce/plugins/wordpress/img/more.gif',
  'wp-includes/js/tinymce/plugins/wordpress/img/toolbars.gif',
  'wp-includes/js/tinymce/themes/advanced/img/fm.gif',
  'wp-includes/js/tinymce/themes/advanced/img/sflogo.png',
  // 3.3
  'wp-admin/css/colors-classic-rtl.css',
  'wp-admin/css/colors-classic-rtl.dev.css',
  'wp-admin/css/colors-fresh-rtl.css',
  'wp-admin/css/colors-fresh-rtl.dev.css',
  'wp-admin/css/dashboard-rtl.dev.css',
  'wp-admin/css/dashboard.dev.css',
  'wp-admin/css/global-rtl.css',
  'wp-admin/css/global-rtl.dev.css',
  'wp-admin/css/global.css',
  'wp-admin/css/global.dev.css',
  'wp-admin/css/install-rtl.dev.css',
  'wp-admin/css/login-rtl.dev.css',
  'wp-admin/css/login.dev.css',
  'wp-admin/css/ms.css',
  'wp-admin/css/ms.dev.css',
  'wp-admin/css/nav-menu-rtl.css',
  'wp-admin/css/nav-menu-rtl.dev.css',
  'wp-admin/css/nav-menu.css',
  'wp-admin/css/nav-menu.dev.css',
  'wp-admin/css/plugin-install-rtl.css',
  'wp-admin/css/plugin-install-rtl.dev.css',
  'wp-admin/css/plugin-install.css',
  'wp-admin/css/plugin-install.dev.css',
  'wp-admin/css/press-this-rtl.dev.css',
  'wp-admin/css/press-this.dev.css',
  'wp-admin/css/theme-editor-rtl.css',
  'wp-admin/css/theme-editor-rtl.dev.css',
  'wp-admin/css/theme-editor.css',
  'wp-admin/css/theme-editor.dev.css',
  'wp-admin/css/theme-install-rtl.css',
  'wp-admin/css/theme-install-rtl.dev.css',
  'wp-admin/css/theme-install.css',
  'wp-admin/css/theme-install.dev.css',
  'wp-admin/css/widgets-rtl.dev.css',
  'wp-admin/css/widgets.dev.css',
  'wp-admin/includes/internal-linking.php',
  'wp-includes/images/admin-bar-sprite-rtl.png',
  'wp-includes/js/jquery/ui.button.js',
  'wp-includes/js/jquery/ui.core.js',
  'wp-includes/js/jquery/ui.dialog.js',
  'wp-includes/js/jquery/ui.draggable.js',
  'wp-includes/js/jquery/ui.droppable.js',
  'wp-includes/js/jquery/ui.mouse.js',
  'wp-includes/js/jquery/ui.position.js',
  'wp-includes/js/jquery/ui.resizable.js',
  'wp-includes/js/jquery/ui.selectable.js',
  'wp-includes/js/jquery/ui.sortable.js',
  'wp-includes/js/jquery/ui.tabs.js',
  'wp-includes/js/jquery/ui.widget.js',
  'wp-includes/js/l10n.dev.js',
  'wp-includes/js/l10n.js',
  'wp-includes/js/tinymce/plugins/wplink/css',
  'wp-includes/js/tinymce/plugins/wplink/img',
  'wp-includes/js/tinymce/plugins/wplink/js',
  'wp-includes/js/tinymce/themes/advanced/img/wpicons.png',
  'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/butt2.png',
  'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/button_bg.png',
  'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/down_arrow.gif',
  'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/fade-butt.png',
  'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/separator.gif',
  // Don't delete, yet: 'wp-rss.php',
  // Don't delete, yet: 'wp-rdf.php',
  // Don't delete, yet: 'wp-rss2.php',
  // Don't delete, yet: 'wp-commentsrss2.php',
  // Don't delete, yet: 'wp-atom.php',
  // Don't delete, yet: 'wp-feed.php',
  // 3.4
  'wp-admin/images/gray-star.png',
  'wp-admin/images/logo-login.png',
  'wp-admin/images/star.png',
  'wp-admin/index-extra.php',
  'wp-admin/network/index-extra.php',
  'wp-admin/user/index-extra.php',
  'wp-admin/images/screenshots/admin-flyouts.png',
  'wp-admin/images/screenshots/coediting.png',
  'wp-admin/images/screenshots/drag-and-drop.png',
  'wp-admin/images/screenshots/help-screen.png',
  'wp-admin/images/screenshots/media-icon.png',
  'wp-admin/images/screenshots/new-feature-pointer.png',
  'wp-admin/images/screenshots/welcome-screen.png',
  'wp-includes/css/editor-buttons.css',
  'wp-includes/css/editor-buttons.dev.css',
  'wp-includes/js/tinymce/plugins/paste/blank.htm',
  'wp-includes/js/tinymce/plugins/wordpress/css',
  'wp-includes/js/tinymce/plugins/wordpress/editor_plugin.dev.js',
  'wp-includes/js/tinymce/plugins/wordpress/img/embedded.png',
  'wp-includes/js/tinymce/plugins/wordpress/img/more_bug.gif',
  'wp-includes/js/tinymce/plugins/wordpress/img/page_bug.gif',
  'wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.dev.js',
  'wp-includes/js/tinymce/plugins/wpeditimage/css/editimage-rtl.css',
  'wp-includes/js/tinymce/plugins/wpeditimage/editor_plugin.dev.js',
  'wp-includes/js/tinymce/plugins/wpfullscreen/editor_plugin.dev.js',
  'wp-includes/js/tinymce/plugins/wpgallery/editor_plugin.dev.js',
  'wp-includes/js/tinymce/plugins/wpgallery/img/gallery.png',
  'wp-includes/js/tinymce/plugins/wplink/editor_plugin.dev.js',
  // Don't delete, yet: 'wp-pass.php',
  // Don't delete, yet: 'wp-register.php',
  // 3.5
  'wp-admin/gears-manifest.php',
  'wp-admin/includes/manifest.php',
  'wp-admin/images/archive-link.png',
  'wp-admin/images/blue-grad.png',
  'wp-admin/images/button-grad-active.png',
  'wp-admin/images/button-grad.png',
  'wp-admin/images/ed-bg-vs.gif',
  'wp-admin/images/ed-bg.gif',
  'wp-admin/images/fade-butt.png',
  'wp-admin/images/fav-arrow-rtl.gif',
  'wp-admin/images/fav-arrow.gif',
  'wp-admin/images/fav-vs.png',
  'wp-admin/images/fav.png',
  'wp-admin/images/gray-grad.png',
  'wp-admin/images/loading-publish.gif',
  'wp-admin/images/logo-ghost.png',
  'wp-admin/images/logo.gif',
  'wp-admin/images/menu-arrow-frame-rtl.png',
  'wp-admin/images/menu-arrow-frame.png',
  'wp-admin/images/menu-arrows.gif',
  'wp-admin/images/menu-bits-rtl-vs.gif',
  'wp-admin/images/menu-bits-rtl.gif',
  'wp-admin/images/menu-bits-vs.gif',
  'wp-admin/images/menu-bits.gif',
  'wp-admin/images/menu-dark-rtl-vs.gif',
  'wp-admin/images/menu-dark-rtl.gif',
  'wp-admin/images/menu-dark-vs.gif',
  'wp-admin/images/menu-dark.gif',
  'wp-admin/images/required.gif',
  'wp-admin/images/screen-options-toggle-vs.gif',
  'wp-admin/images/screen-options-toggle.gif',
  'wp-admin/images/toggle-arrow-rtl.gif',
  'wp-admin/images/toggle-arrow.gif',
  'wp-admin/images/upload-classic.png',
  'wp-admin/images/upload-fresh.png',
  'wp-admin/images/white-grad-active.png',
  'wp-admin/images/white-grad.png',
  'wp-admin/images/widgets-arrow-vs.gif',
  'wp-admin/images/widgets-arrow.gif',
  'wp-admin/images/wpspin_dark.gif',
  'wp-includes/images/upload.png',
  'wp-includes/js/prototype.js',
  'wp-includes/js/scriptaculous',
  'wp-admin/css/wp-admin-rtl.dev.css',
  'wp-admin/css/wp-admin.dev.css',
  'wp-admin/css/media-rtl.dev.css',
  'wp-admin/css/media.dev.css',
  'wp-admin/css/colors-classic.dev.css',
  'wp-admin/css/customize-controls-rtl.dev.css',
  'wp-admin/css/customize-controls.dev.css',
  'wp-admin/css/ie-rtl.dev.css',
  'wp-admin/css/ie.dev.css',
  'wp-admin/css/install.dev.css',
  'wp-admin/css/colors-fresh.dev.css',
  'wp-includes/js/customize-base.dev.js',
  'wp-includes/js/json2.dev.js',
  'wp-includes/js/comment-reply.dev.js',
  'wp-includes/js/customize-preview.dev.js',
  'wp-includes/js/wplink.dev.js',
  'wp-includes/js/tw-sack.dev.js',
  'wp-includes/js/wp-list-revisions.dev.js',
  'wp-includes/js/autosave.dev.js',
  'wp-includes/js/admin-bar.dev.js',
  'wp-includes/js/quicktags.dev.js',
  'wp-includes/js/wp-ajax-response.dev.js',
  'wp-includes/js/wp-pointer.dev.js',
  'wp-includes/js/hoverIntent.dev.js',
  'wp-includes/js/colorpicker.dev.js',
  'wp-includes/js/wp-lists.dev.js',
  'wp-includes/js/customize-loader.dev.js',
  'wp-includes/js/jquery/jquery.table-hotkeys.dev.js',
  'wp-includes/js/jquery/jquery.color.dev.js',
  'wp-includes/js/jquery/jquery.color.js',
  'wp-includes/js/jquery/jquery.hotkeys.dev.js',
  'wp-includes/js/jquery/jquery.form.dev.js',
  'wp-includes/js/jquery/suggest.dev.js',
  'wp-admin/js/xfn.dev.js',
  'wp-admin/js/set-post-thumbnail.dev.js',
  'wp-admin/js/comment.dev.js',
  'wp-admin/js/theme.dev.js',
  'wp-admin/js/cat.dev.js',
  'wp-admin/js/password-strength-meter.dev.js',
  'wp-admin/js/user-profile.dev.js',
  'wp-admin/js/theme-preview.dev.js',
  'wp-admin/js/post.dev.js',
  'wp-admin/js/media-upload.dev.js',
  'wp-admin/js/word-count.dev.js',
  'wp-admin/js/plugin-install.dev.js',
  'wp-admin/js/edit-comments.dev.js',
  'wp-admin/js/media-gallery.dev.js',
  'wp-admin/js/custom-fields.dev.js',
  'wp-admin/js/custom-background.dev.js',
  'wp-admin/js/common.dev.js',
  'wp-admin/js/inline-edit-tax.dev.js',
  'wp-admin/js/gallery.dev.js',
  'wp-admin/js/utils.dev.js',
  'wp-admin/js/widgets.dev.js',
  'wp-admin/js/wp-fullscreen.dev.js',
  'wp-admin/js/nav-menu.dev.js',
  'wp-admin/js/dashboard.dev.js',
  'wp-admin/js/link.dev.js',
  'wp-admin/js/user-suggest.dev.js',
  'wp-admin/js/postbox.dev.js',
  'wp-admin/js/tags.dev.js',
  'wp-admin/js/image-edit.dev.js',
  'wp-admin/js/media.dev.js',
  'wp-admin/js/customize-controls.dev.js',
  'wp-admin/js/inline-edit-post.dev.js',
  'wp-admin/js/categories.dev.js',
  'wp-admin/js/editor.dev.js',
  'wp-includes/js/tinymce/plugins/wpeditimage/js/editimage.dev.js',
  'wp-includes/js/tinymce/plugins/wpdialogs/js/popup.dev.js',
  'wp-includes/js/tinymce/plugins/wpdialogs/js/wpdialog.dev.js',
  'wp-includes/js/plupload/handlers.dev.js',
  'wp-includes/js/plupload/wp-plupload.dev.js',
  'wp-includes/js/swfupload/handlers.dev.js',
  'wp-includes/js/jcrop/jquery.Jcrop.dev.js',
  'wp-includes/js/jcrop/jquery.Jcrop.js',
  'wp-includes/js/jcrop/jquery.Jcrop.css',
  'wp-includes/js/imgareaselect/jquery.imgareaselect.dev.js',
  'wp-includes/css/wp-pointer.dev.css',
  'wp-includes/css/editor.dev.css',
  'wp-includes/css/jquery-ui-dialog.dev.css',
  'wp-includes/css/admin-bar-rtl.dev.css',
  'wp-includes/css/admin-bar.dev.css',
  'wp-includes/js/jquery/ui/jquery.effects.clip.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.scale.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.blind.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.core.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.shake.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.fade.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.explode.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.slide.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.drop.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.highlight.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.bounce.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.pulsate.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.transfer.min.js',
  'wp-includes/js/jquery/ui/jquery.effects.fold.min.js',
  'wp-admin/images/screenshots/captions-1.png',
  'wp-admin/images/screenshots/captions-2.png',
  'wp-admin/images/screenshots/flex-header-1.png',
  'wp-admin/images/screenshots/flex-header-2.png',
  'wp-admin/images/screenshots/flex-header-3.png',
  'wp-admin/images/screenshots/flex-header-media-library.png',
  'wp-admin/images/screenshots/theme-customizer.png',
  'wp-admin/images/screenshots/twitter-embed-1.png',
  'wp-admin/images/screenshots/twitter-embed-2.png',
  'wp-admin/js/utils.js',
  // Added back in 5.3 [45448], see #43895.
  // 'wp-admin/options-privacy.php',
  'wp-app.php',
  'wp-includes/class-wp-atom-server.php',
  'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/ui.css',
  // 3.5.2
  'wp-includes/js/swfupload/swfupload-all.js',
  // 3.6
  'wp-admin/js/revisions-js.php',
  'wp-admin/images/screenshots',
  'wp-admin/js/categories.js',
  'wp-admin/js/categories.min.js',
  'wp-admin/js/custom-fields.js',
  'wp-admin/js/custom-fields.min.js',
  // 3.7
  'wp-admin/js/cat.js',
  'wp-admin/js/cat.min.js',
  'wp-includes/js/tinymce/plugins/wpeditimage/js/editimage.min.js',
  // 3.8
  'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/page_bug.gif',
  'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/more_bug.gif',
  'wp-includes/js/thickbox/tb-close-2x.png',
  'wp-includes/js/thickbox/tb-close.png',
  'wp-includes/images/wpmini-blue-2x.png',
  'wp-includes/images/wpmini-blue.png',
  'wp-admin/css/colors-fresh.css',
  'wp-admin/css/colors-classic.css',
  'wp-admin/css/colors-fresh.min.css',
  'wp-admin/css/colors-classic.min.css',
  'wp-admin/js/about.min.js',
  'wp-admin/js/about.js',
  'wp-admin/images/arrows-dark-vs-2x.png',
  'wp-admin/images/wp-logo-vs.png',
  'wp-admin/images/arrows-dark-vs.png',
  'wp-admin/images/wp-logo.png',
  'wp-admin/images/arrows-pr.png',
  'wp-admin/images/arrows-dark.png',
  'wp-admin/images/press-this.png',
  'wp-admin/images/press-this-2x.png',
  'wp-admin/images/arrows-vs-2x.png',
  'wp-admin/images/welcome-icons.png',
  'wp-admin/images/wp-logo-2x.png',
  'wp-admin/images/stars-rtl-2x.png',
  'wp-admin/images/arrows-dark-2x.png',
  'wp-admin/images/arrows-pr-2x.png',
  'wp-admin/images/menu-shadow-rtl.png',
  'wp-admin/images/arrows-vs.png',
  'wp-admin/images/about-search-2x.png',
  'wp-admin/images/bubble_bg-rtl-2x.gif',
  'wp-admin/images/wp-badge-2x.png',
  'wp-admin/images/wordpress-logo-2x.png',
  'wp-admin/images/bubble_bg-rtl.gif',
  'wp-admin/images/wp-badge.png',
  'wp-admin/images/menu-shadow.png',
  'wp-admin/images/about-globe-2x.png',
  'wp-admin/images/welcome-icons-2x.png',
  'wp-admin/images/stars-rtl.png',
  'wp-admin/images/wp-logo-vs-2x.png',
  'wp-admin/images/about-updates-2x.png',
  // 3.9
  'wp-admin/css/colors.css',
  'wp-admin/css/colors.min.css',
  'wp-admin/css/colors-rtl.css',
  'wp-admin/css/colors-rtl.min.css',
  // Following files added back in 4.5, see #36083.
  // 'wp-admin/css/media-rtl.min.css',
  // 'wp-admin/css/media.min.css',
  // 'wp-admin/css/farbtastic-rtl.min.css',
  'wp-admin/images/lock-2x.png',
  'wp-admin/images/lock.png',
  'wp-admin/js/theme-preview.js',
  'wp-admin/js/theme-install.min.js',
  'wp-admin/js/theme-install.js',
  'wp-admin/js/theme-preview.min.js',
  'wp-includes/js/plupload/plupload.html4.js',
  'wp-includes/js/plupload/plupload.html5.js',
  'wp-includes/js/plupload/changelog.txt',
  'wp-includes/js/plupload/plupload.silverlight.js',
  'wp-includes/js/plupload/plupload.flash.js',
  // Added back in 4.9 [41328], see #41755.
  // 'wp-includes/js/plupload/plupload.js',
  'wp-includes/js/tinymce/plugins/spellchecker',
  'wp-includes/js/tinymce/plugins/inlinepopups',
  'wp-includes/js/tinymce/plugins/media/js',
  'wp-includes/js/tinymce/plugins/media/css',
  'wp-includes/js/tinymce/plugins/wordpress/img',
  'wp-includes/js/tinymce/plugins/wpdialogs/js',
  'wp-includes/js/tinymce/plugins/wpeditimage/img',
  'wp-includes/js/tinymce/plugins/wpeditimage/js',
  'wp-includes/js/tinymce/plugins/wpeditimage/css',
  'wp-includes/js/tinymce/plugins/wpgallery/img',
  'wp-includes/js/tinymce/plugins/wpfullscreen/css',
  'wp-includes/js/tinymce/plugins/paste/js',
  'wp-includes/js/tinymce/themes/advanced',
  'wp-includes/js/tinymce/tiny_mce.js',
  'wp-includes/js/tinymce/mark_loaded_src.js',
  'wp-includes/js/tinymce/wp-tinymce-schema.js',
  'wp-includes/js/tinymce/plugins/media/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/media/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/media/media.htm',
  'wp-includes/js/tinymce/plugins/wpview/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/wpview/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/directionality/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/directionality/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/wordpress/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/wordpress/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/wpeditimage/editimage.html',
  'wp-includes/js/tinymce/plugins/wpeditimage/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/wpeditimage/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/fullscreen/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/fullscreen/fullscreen.htm',
  'wp-includes/js/tinymce/plugins/fullscreen/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/wplink/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/wplink/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/wpgallery/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/wpgallery/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/tabfocus/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/tabfocus/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/wpfullscreen/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/wpfullscreen/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/paste/editor_plugin.js',
  'wp-includes/js/tinymce/plugins/paste/pasteword.htm',
  'wp-includes/js/tinymce/plugins/paste/editor_plugin_src.js',
  'wp-includes/js/tinymce/plugins/paste/pastetext.htm',
  'wp-includes/js/tinymce/langs/wp-langs.php',
  // 4.1
  'wp-includes/js/jquery/ui/jquery.ui.accordion.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.autocomplete.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.button.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.core.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.datepicker.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.dialog.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.draggable.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.droppable.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-blind.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-bounce.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-clip.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-drop.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-explode.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-fade.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-fold.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-highlight.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-pulsate.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-scale.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-shake.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-slide.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect-transfer.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.effect.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.menu.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.mouse.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.position.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.progressbar.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.resizable.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.selectable.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.slider.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.sortable.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.spinner.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.tabs.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.tooltip.min.js',
  'wp-includes/js/jquery/ui/jquery.ui.widget.min.js',
  'wp-includes/js/tinymce/skins/wordpress/images/dashicon-no-alt.png',
  // 4.3
  'wp-admin/js/wp-fullscreen.js',
  'wp-admin/js/wp-fullscreen.min.js',
  'wp-includes/js/tinymce/wp-mce-help.php',
  'wp-includes/js/tinymce/plugins/wpfullscreen',
  // 4.5
  'wp-includes/theme-compat/comments-popup.php',
  // 4.6
  'wp-admin/includes/class-wp-automatic-upgrader.php', // Wrong file name, see #37628.
  // 4.8
  'wp-includes/js/tinymce/plugins/wpembed',
  'wp-includes/js/tinymce/plugins/media/moxieplayer.swf',
  'wp-includes/js/tinymce/skins/lightgray/fonts/readme.md',
  'wp-includes/js/tinymce/skins/lightgray/fonts/tinymce-small.json',
  'wp-includes/js/tinymce/skins/lightgray/fonts/tinymce.json',
  'wp-includes/js/tinymce/skins/lightgray/skin.ie7.min.css',
  // 4.9
  'wp-admin/css/press-this-editor-rtl.css',
  'wp-admin/css/press-this-editor-rtl.min.css',
  'wp-admin/css/press-this-editor.css',
  'wp-admin/css/press-this-editor.min.css',
  'wp-admin/css/press-this-rtl.css',
  'wp-admin/css/press-this-rtl.min.css',
  'wp-admin/css/press-this.css',
  'wp-admin/css/press-this.min.css',
  'wp-admin/includes/class-wp-press-this.php',
  'wp-admin/js/bookmarklet.js',
  'wp-admin/js/bookmarklet.min.js',
  'wp-admin/js/press-this.js',
  'wp-admin/js/press-this.min.js',
  'wp-includes/js/mediaelement/background.png',
  'wp-includes/js/mediaelement/bigplay.png',
  'wp-includes/js/mediaelement/bigplay.svg',
  'wp-includes/js/mediaelement/controls.png',
  'wp-includes/js/mediaelement/controls.svg',
  'wp-includes/js/mediaelement/flashmediaelement.swf',
  'wp-includes/js/mediaelement/froogaloop.min.js',
  'wp-includes/js/mediaelement/jumpforward.png',
  'wp-includes/js/mediaelement/loading.gif',
  'wp-includes/js/mediaelement/silverlightmediaelement.xap',
  'wp-includes/js/mediaelement/skipback.png',
  'wp-includes/js/plupload/plupload.flash.swf',
  'wp-includes/js/plupload/plupload.full.min.js',
  'wp-includes/js/plupload/plupload.silverlight.xap',
  'wp-includes/js/swfupload/plugins',
  'wp-includes/js/swfupload/swfupload.swf',
  // 4.9.2
  'wp-includes/js/mediaelement/lang',
  'wp-includes/js/mediaelement/lang/ca.js',
  'wp-includes/js/mediaelement/lang/cs.js',
  'wp-includes/js/mediaelement/lang/de.js',
  'wp-includes/js/mediaelement/lang/es.js',
  'wp-includes/js/mediaelement/lang/fa.js',
  'wp-includes/js/mediaelement/lang/fr.js',
  'wp-includes/js/mediaelement/lang/hr.js',
  'wp-includes/js/mediaelement/lang/hu.js',
  'wp-includes/js/mediaelement/lang/it.js',
  'wp-includes/js/mediaelement/lang/ja.js',
  'wp-includes/js/mediaelement/lang/ko.js',
  'wp-includes/js/mediaelement/lang/nl.js',
  'wp-includes/js/mediaelement/lang/pl.js',
  'wp-includes/js/mediaelement/lang/pt.js',
  'wp-includes/js/mediaelement/lang/ro.js',
  'wp-includes/js/mediaelement/lang/ru.js',
  'wp-includes/js/mediaelement/lang/sk.js',
  'wp-includes/js/mediaelement/lang/sv.js',
  'wp-includes/js/mediaelement/lang/uk.js',
  'wp-includes/js/mediaelement/lang/zh-cn.js',
  'wp-includes/js/mediaelement/lang/zh.js',
  'wp-includes/js/mediaelement/mediaelement-flash-audio-ogg.swf',
  'wp-includes/js/mediaelement/mediaelement-flash-audio.swf',
  'wp-includes/js/mediaelement/mediaelement-flash-video-hls.swf',
  'wp-includes/js/mediaelement/mediaelement-flash-video-mdash.swf',
  'wp-includes/js/mediaelement/mediaelement-flash-video.swf',
  'wp-includes/js/mediaelement/renderers/dailymotion.js',
  'wp-includes/js/mediaelement/renderers/dailymotion.min.js',
  'wp-includes/js/mediaelement/renderers/facebook.js',
  'wp-includes/js/mediaelement/renderers/facebook.min.js',
  'wp-includes/js/mediaelement/renderers/soundcloud.js',
  'wp-includes/js/mediaelement/renderers/soundcloud.min.js',
  'wp-includes/js/mediaelement/renderers/twitch.js',
  'wp-includes/js/mediaelement/renderers/twitch.min.js',
  // 5.0
  'wp-includes/js/codemirror/jshint.js',
  // 5.1
  'wp-includes/random_compat/random_bytes_openssl.php',
  'wp-includes/js/tinymce/wp-tinymce.js.gz',
  // 5.3
  'wp-includes/js/wp-a11y.js',     // Moved to: wp-includes/js/dist/a11y.js
  'wp-includes/js/wp-a11y.min.js', // Moved to: wp-includes/js/dist/a11y.min.js
  // 5.4
  'wp-admin/js/wp-fullscreen-stub.js',
  'wp-admin/js/wp-fullscreen-stub.min.js',
  // 5.5
  'wp-admin/css/ie.css',
  'wp-admin/css/ie.min.css',
  'wp-admin/css/ie-rtl.css',
  'wp-admin/css/ie-rtl.min.css',
  // 5.6
  'wp-includes/js/jquery/ui/position.min.js',
  'wp-includes/js/jquery/ui/widget.min.js',
  // 5.7
  'wp-includes/blocks/classic/block.json',
  // 5.8
  'wp-admin/images/freedoms.png',
  'wp-admin/images/privacy.png',
  'wp-admin/images/about-badge.svg',
  'wp-admin/images/about-color-palette.svg',
  'wp-admin/images/about-color-palette-vert.svg',
  'wp-admin/images/about-header-brushes.svg',
  'wp-includes/block-patterns/large-header.php',
  'wp-includes/block-patterns/heading-paragraph.php',
  'wp-includes/block-patterns/quote.php',
  'wp-includes/block-patterns/text-three-columns-buttons.php',
  'wp-includes/block-patterns/two-buttons.php',
  'wp-includes/block-patterns/two-images.php',
  'wp-includes/block-patterns/three-buttons.php',
  'wp-includes/block-patterns/text-two-columns-with-images.php',
  'wp-includes/block-patterns/text-two-columns.php',
  'wp-includes/block-patterns/large-header-button.php',
  'wp-includes/blocks/subhead/block.json',
  'wp-includes/blocks/subhead',
  'wp-includes/css/dist/editor/editor-styles.css',
  'wp-includes/css/dist/editor/editor-styles.min.css',
  'wp-includes/css/dist/editor/editor-styles-rtl.css',
  'wp-includes/css/dist/editor/editor-styles-rtl.min.css',
  // 5.9
  'wp-includes/blocks/heading/editor.css',
  'wp-includes/blocks/heading/editor.min.css',
  'wp-includes/blocks/heading/editor-rtl.css',
  'wp-includes/blocks/heading/editor-rtl.min.css',
  'wp-includes/blocks/post-content/editor.css',
  'wp-includes/blocks/post-content/editor.min.css',
  'wp-includes/blocks/post-content/editor-rtl.css',
  'wp-includes/blocks/post-content/editor-rtl.min.css',
  'wp-includes/blocks/query-title/editor.css',
  'wp-includes/blocks/query-title/editor.min.css',
  'wp-includes/blocks/query-title/editor-rtl.css',
  'wp-includes/blocks/query-title/editor-rtl.min.css',
  'wp-includes/blocks/tag-cloud/editor.css',
  'wp-includes/blocks/tag-cloud/editor.min.css',
  'wp-includes/blocks/tag-cloud/editor-rtl.css',
  'wp-includes/blocks/tag-cloud/editor-rtl.min.css',
  // 6.0
  'wp-content/themes/twentytwentytwo/assets/fonts/LICENSE.md',
  // 6.1
  'wp-content/themes/twentytwentyone/assets/sass/05-blocks/spacer/_style.scss',
  'wp-content/themes/twentytwentyone/assets/sass/05-blocks/spacer',
  'wp-includes/blocks/post-comments.php',
  'wp-includes/blocks/post-comments/block.json',
  'wp-includes/blocks/post-comments/editor.css',
  'wp-includes/blocks/post-comments/editor.min.css',
  'wp-includes/blocks/post-comments/editor-rtl.css',
  'wp-includes/blocks/post-comments/editor-rtl.min.css',
  'wp-includes/blocks/post-comments/style.css',
  'wp-includes/blocks/post-comments/style.min.css',
  'wp-includes/blocks/post-comments/style-rtl.css',
  'wp-includes/blocks/post-comments/style-rtl.min.css',
  'wp-includes/blocks/post-comments',
  'wp-includes/blocks/comments-query-loop/block.json',
  'wp-includes/blocks/comments-query-loop/editor.css',
  'wp-includes/blocks/comments-query-loop/editor.min.css',
  'wp-includes/blocks/comments-query-loop/editor-rtl.css',
  'wp-includes/blocks/comments-query-loop/editor-rtl.min.css',
  'wp-includes/blocks/comments-query-loop',
);


/**
 * Stores new files in wp-content to copy
 *
 * The contents of this array indicate any new bundled plugins/themes which
 * should be installed with the WordPress Upgrade. These items will not be
 * re-installed in future upgrades, this behaviour is controlled by the
 * introduced version present here being older than the current installed version.
 *
 * The content of this array should follow the following format:
 * Filename (relative to wp-content) => Introduced version
 * Directories should be noted by suffixing it with a trailing slash (/)
 *
 * @since 3.2.0
 * @since 4.7.0 New themes were not automatically installed for 4.4-4.6 on
 *              upgrade. New themes are now installed again. To disable new
 *              themes from being installed on upgrade, explicitly define
 *              CORE_UPGRADE_SKIP_NEW_BUNDLED as true.
 * @global array $_new_bundled_files
 * @var array
 * @name $_new_bundled_files
 */
global $_new_bundled_files;

$_new_bundled_files = array(
  'plugins/akismet/'          => '2.0',
  'themes/twentyten/'         => '3.0',
  'themes/twentyeleven/'      => '3.2',
  'themes/twentytwelve/'      => '3.5',
  'themes/twentythirteen/'    => '3.6',
  'themes/twentyfourteen/'    => '3.8',
  'themes/twentyfifteen/'     => '4.1',
  'themes/twentysixteen/'     => '4.4',
  'themes/twentyseventeen/'   => '4.7',
  'themes/twentynineteen/'    => '5.0',
  'themes/twentytwenty/'      => '5.3',
  'themes/twentytwentyone/'   => '5.6',
  'themes/twentytwentytwo/'   => '5.9',
  'themes/twentytwentythree/' => '6.1',
);

/* function update_core() – Upgrades the core of WordPress. */

/* function _redirect_to_about_wordpress() – Redirect to the About WordPress page after a successful upgrade. */

/* function _upgrade_422_remove_genericons() – Cleans up Genericons example files. */

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

/* function _upgrade_440_force_deactivate_incompatible_plugins() – */

/* function _upgrade_core_deactivate_incompatible_plugins */