Codex

Files Automatically Replaced by Core Upgrade

When using the core upgrade function, introduced with Version 2.7, some old files, which are no longer included with the latest release, will be deleted. The list of files to be deleted is in the wp-admin/includes/update-core.php file.

In addition to the files to be deleted, all other core files are replaced with the newer versions. If you have made modifications to any core files, including the WordPress Default theme files, you'll need to insure they are backed up before attempting the core upgrade. After the upgrade, you'll have to retrofit the modifications to the new core files again. Simply re-using the old modified files is NOT recommended.

Files Set For Deletion

$_old_files = array(
'wp-admin/bookmarklet.php',
'wp-admin/css/upload.css',
'wp-admin/css/upload-rtl.css',
'wp-admin/css/press-this-ie.css',
'wp-admin/css/press-this-ie-rtl.css',
'wp-admin/edit-form.php',
'wp-admin/link-import.php',
'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/images/comment-stalk-classic.gif',
'wp-admin/images/comment-stalk-fresh.gif',
'wp-admin/images/comment-stalk-rtl.gif',
'wp-admin/images/comment-pill.gif',
'wp-admin/images/del.png',
'wp-admin/images/media-button-gallery.gif',
'wp-admin/images/media-buttons.gif',
'wp-admin/images/tail.gif',
'wp-admin/images/gear.png',
'wp-admin/images/tab.png',
'wp-admin/images/postbox-bg.gif',
'wp-admin/includes/upload.php',
'wp-admin/js/dbx-admin-key.js',
'wp-admin/js/link-cat.js',
'wp-admin/js/forms.js',
'wp-admin/js/upload.js',
'wp-admin/js/set-post-thumbnail-handler.js',
'wp-admin/js/set-post-thumbnail-handler.dev.js',
'wp-admin/js/page.js',
'wp-admin/js/page.dev.js',
'wp-admin/js/slug.js',
'wp-admin/js/slug.dev.js',
'wp-admin/profile-update.php',
'wp-admin/templates.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/dbx.js',
'wp-includes/js/fat.js',
'wp-includes/js/list-manipulation.js',
'wp-includes/js/jquery/jquery.dimensions.min.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/popups.css',
'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',
'wp-includes/js/tinymce/tiny_mce_gzip.php',
'wp-includes/js/wp-ajax.js',
'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',
'wp-admin/cat-js.php',
'wp-admin/edit-form-ajax-cat.php',
'wp-admin/execute-pings.php',
'wp-admin/import/b2.php',
'wp-admin/import/btt.php',
'wp-admin/import/jkw.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/js/tinymce/themes/advanced/editor_template_src.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',
'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',
'wp-includes/gettext.php',
'wp-includes/streams.php',
// MU
'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/wpmu-default-filters.php',
'wp-includes/wpmu-functions.php',
'wpmu-settings.php',
'index-install.php',
'README.txt',
'htaccess.dist',
'wp-admin/css/mu-rtl.css',
'wp-admin/css/mu.css',
'wp-admin/images/site-admin.png',
'wp-admin/includes/mu.php',
'wp-includes/images/wordpress-mu.png',
// 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/wp-logo.gif',
'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/jquery/autocomplete.dev.js',
'wp-includes/js/jquery/interface.js',
'wp-includes/js/jquery/autocomplete.js',
'wp-includes/js/scriptaculous/prototype.js',
'wp-includes/js/tinymce/wp-tinymce.js',
'wp-admin/import',
'wp-admin/images/ico-edit.png',
'wp-admin/images/fav-top.png',
'wp-admin/images/ico-close.png',
'wp-admin/images/admin-header-footer.png',
'wp-admin/images/screen-options-left.gif',
'wp-admin/images/ico-add.png',
'wp-admin/images/browse-happy.gif',
'wp-admin/images/ico-viewpage.png',
// 3.1
'wp-includes/js/tinymce/blank.htm',
'wp-includes/js/tinymce/plugins/safari',
'wp-admin/edit-link-categories.php',
'wp-admin/edit-post-rows.php',
'wp-admin/edit-attachment-rows.php',
'wp-admin/link-category.php',
'wp-admin/edit-link-category-form.php',
'wp-admin/sidebar.php',
'wp-admin/images/list-vs.png',
'wp-admin/images/button-grad-vs.png',
'wp-admin/images/button-grad-active-vs.png',
'wp-admin/images/fav-arrow-vs.gif',
'wp-admin/images/fav-arrow-vs-rtl.gif',
'wp-admin/images/fav-top-vs.gif',
'wp-admin/images/screen-options-right.gif',
'wp-admin/images/screen-options-right-up.gif',
'wp-admin/images/visit-site-button-grad-vs.gif',
'wp-admin/images/visit-site-button-grad.gif',
'wp-includes/classes.php',
// 3.2
'wp-includes/default-embeds.php',
'wp-includes/js/tinymce/plugins/wordpress/img/more.gif',
'wp-includes/js/tinymce/plugins/wordpress/img/toolbars.gif',
'wp-includes/js/tinymce/plugins/wordpress/img/help.gif',
'wp-includes/js/tinymce/themes/advanced/img/fm.gif',
'wp-includes/js/tinymce/themes/advanced/img/sflogo.png',
'wp-admin/js/list-table.js',
'wp-admin/js/list-table.dev.js',
'wp-admin/images/logo-login.gif',
'wp-admin/images/star.gif',
// 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.css',
'wp-admin/css/dashboard-rtl.dev.css',
'wp-admin/css/dashboard.css',
'wp-admin/css/dashboard.dev.css',
'wp-admin/css/farbtastic-rtl.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.css',
'wp-admin/css/install-rtl.dev.css',
'wp-admin/css/login-rtl.css',
'wp-admin/css/login-rtl.dev.css',
'wp-admin/css/login.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.css',
'wp-admin/css/press-this-rtl.dev.css',
'wp-admin/css/press-this.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.css',
'wp-admin/css/widgets-rtl.dev.css',
'wp-admin/css/widgets.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',
);

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Changelog

  • 2.8 : Removed the following files from Files Set For Deletion:
    • wp-content/themes/default/attachment.php
    • wp-content/themes/default/images/kubrickbg.jpg
    • wp-content/plugins/markdown.php
    • wp-content/plugins/textile1.php