WordPress 4.0
[autoinstalls/wordpress.git] / wp-admin / includes / update-core.php
index a96332d4da4630ef8bffe726c59c023aad54a332..8c9479682c93e088b7d90baba337f53ce7cbf298 100644 (file)
 global $_old_files;
 
 $_old_files = array(
-'wp-admin/bookmarklet.php',
+// 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/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',
@@ -39,47 +100,17 @@ $_old_files = array(
 '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/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/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',
@@ -101,77 +132,561 @@ $_old_files = array(
 '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',
+// 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',
-'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',
+// 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',
-'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',
+// 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/streams.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',
+'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',
+'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',
+'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',
+'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',
+);
+
+/**
+ * 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
+ * @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',
 );
 
 /**
@@ -184,12 +699,18 @@ $_old_files = array(
  * The files in the {@link $_old_files} list will be removed and the new files
  * copied from the zip file after the database is upgraded.
  *
+ * The files in the {@link $_new_bundled_files} list will be added to the installation
+ * if the version is greater than or equal to the old version being upgraded.
+ *
  * The steps for the upgrader for after the new release is downloaded and
  * unzipped is:
  *   1. Test unzipped location for select files to ensure that unzipped worked.
  *   2. Create the .maintenance file in current WordPress base.
  *   3. Copy new WordPress directory over old WordPress files.
  *   4. Upgrade WordPress to new version.
+ *     4.1. Copy all files/folders other than wp-content
+ *     4.2. Copy any language files to WP_LANG_DIR (which may differ from WP_CONTENT_DIR
+ *     4.3. Copy any new bundled themes/plugins to their respective locations
  *   5. Delete new WordPress directory path.
  *   6. Delete .maintenance file.
  *   7. Remove old files.
@@ -215,17 +736,64 @@ $_old_files = array(
  * @return WP_Error|null WP_Error on failure, null on success.
  */
 function update_core($from, $to) {
-       global $wp_filesystem, $_old_files, $wpdb;
+       global $wp_filesystem, $_old_files, $_new_bundled_files, $wpdb;
 
        @set_time_limit( 300 );
 
+       /**
+        * Filter feedback messages displayed during the core update process.
+        *
+        * The filter is first evaluated after the zip file for the latest version
+        * has been downloaded and unzipped. It is evaluated five more times during
+        * the process:
+        *
+        * 1. Before WordPress begins the core upgrade process.
+        * 2. Before Maintenance Mode is enabled.
+        * 3. Before WordPress begins copying over the necessary files.
+        * 4. Before Maintenance Mode is disabled.
+        * 5. Before the database is upgraded.
+        *
+        * @since 2.5.0
+        *
+        * @param string $feedback The core update feedback messages.
+        */
+       apply_filters( 'update_feedback', __( 'Verifying the unpacked files…' ) );
+
+       // Sanity check the unzipped distribution.
+       $distro = '';
+       $roots = array( '/wordpress/', '/wordpress-mu/' );
+       foreach ( $roots as $root ) {
+               if ( $wp_filesystem->exists( $from . $root . 'readme.html' ) && $wp_filesystem->exists( $from . $root . 'wp-includes/version.php' ) ) {
+                       $distro = $root;
+                       break;
+               }
+       }
+       if ( ! $distro ) {
+               $wp_filesystem->delete( $from, true );
+               return new WP_Error( 'insane_distro', __('The update could not be unpacked') );
+       }
+
+       // Import $wp_version, $required_php_version, and $required_mysql_version from the new version
+       // $wp_filesystem->wp_content_dir() returned unslashed pre-2.8
+       $versions_file = trailingslashit( $wp_filesystem->wp_content_dir() ) . 'upgrade/version-current.php';
+       if ( ! $wp_filesystem->copy( $from . $distro . 'wp-includes/version.php', $versions_file ) ) {
+               $wp_filesystem->delete( $from, true );
+               return new WP_Error( 'copy_failed_for_version_file', __( 'The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions.' ), 'wp-includes/version.php' );
+       }
+
+       $wp_filesystem->chmod( $versions_file, FS_CHMOD_FILE );
+       require( WP_CONTENT_DIR . '/upgrade/version-current.php' );
+       $wp_filesystem->delete( $versions_file );
+
        $php_version    = phpversion();
        $mysql_version  = $wpdb->db_version();
-       $required_php_version = '4.3';
-       $required_mysql_version = '4.1.2';
-       $wp_version = '2.9.1';
+       $old_wp_version = $GLOBALS['wp_version']; // The version of WordPress we're updating from
+       $development_build = ( false !== strpos( $old_wp_version . $wp_version, '-' )  ); // a dash in the version indicates a Development release
        $php_compat     = version_compare( $php_version, $required_php_version, '>=' );
-       $mysql_compat   = version_compare( $mysql_version, $required_mysql_version, '>=' ) || file_exists( WP_CONTENT_DIR . '/db.php' );
+       if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) )
+               $mysql_compat = true;
+       else
+               $mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' );
 
        if ( !$mysql_compat || !$php_compat )
                $wp_filesystem->delete($from, true);
@@ -237,26 +805,200 @@ function update_core($from, $to) {
        elseif ( !$mysql_compat )
                return new WP_Error( 'mysql_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires MySQL version %2$s or higher. You are running version %3$s.'), $wp_version, $required_mysql_version, $mysql_version ) );
 
-       // Sanity check the unzipped distribution
-       apply_filters('update_feedback', __('Verifying the unpacked files'));
-       if ( !$wp_filesystem->exists($from . '/wordpress/wp-settings.php') || !$wp_filesystem->exists($from . '/wordpress/wp-admin/admin.php') ||
-               !$wp_filesystem->exists($from . '/wordpress/wp-includes/functions.php') ) {
-               $wp_filesystem->delete($from, true);
-               return new WP_Error('insane_distro', __('The update could not be unpacked') );
+       /** This filter is documented in wp-admin/includes/update-core.php */
+       apply_filters( 'update_feedback', __( 'Preparing to install the latest version…' ) );
+
+       // Don't copy wp-content, we'll deal with that below
+       // We also copy version.php last so failed updates report their old version
+       $skip = array( 'wp-content', 'wp-includes/version.php' );
+       $check_is_writable = array();
+
+       // Check to see which files don't really need updating - only available for 3.7 and higher
+       if ( function_exists( 'get_core_checksums' ) ) {
+               // Find the local version of the working directory
+               $working_dir_local = WP_CONTENT_DIR . '/upgrade/' . basename( $from ) . $distro;
+
+               $checksums = get_core_checksums( $wp_version, isset( $wp_local_package ) ? $wp_local_package : 'en_US' );
+               if ( is_array( $checksums ) && isset( $checksums[ $wp_version ] ) )
+                       $checksums = $checksums[ $wp_version ]; // Compat code for 3.7-beta2
+               if ( is_array( $checksums ) ) {
+                       foreach( $checksums as $file => $checksum ) {
+                               if ( 'wp-content' == substr( $file, 0, 10 ) )
+                                       continue;
+                               if ( ! file_exists( ABSPATH . $file ) )
+                                       continue;
+                               if ( ! file_exists( $working_dir_local . $file ) )
+                                       continue;
+                               if ( md5_file( ABSPATH . $file ) === $checksum )
+                                       $skip[] = $file;
+                               else
+                                       $check_is_writable[ $file ] = ABSPATH . $file;
+                       }
+               }
        }
 
-       apply_filters('update_feedback', __('Installing the latest version'));
+       // If we're using the direct method, we can predict write failures that are due to permissions.
+       if ( $check_is_writable && 'direct' === $wp_filesystem->method ) {
+               $files_writable = array_filter( $check_is_writable, array( $wp_filesystem, 'is_writable' ) );
+               if ( $files_writable !== $check_is_writable ) {
+                       $files_not_writable = array_diff_key( $check_is_writable, $files_writable );
+                       foreach ( $files_not_writable as $relative_file_not_writable => $file_not_writable ) {
+                               // If the writable check failed, chmod file to 0644 and try again, same as copy_dir().
+                               $wp_filesystem->chmod( $file_not_writable, FS_CHMOD_FILE );
+                               if ( $wp_filesystem->is_writable( $file_not_writable ) )
+                                       unset( $files_not_writable[ $relative_file_not_writable ] );
+                       }
+
+                       // Store package-relative paths (the key) of non-writable files in the WP_Error object.
+                       $error_data = version_compare( $old_wp_version, '3.7-beta2', '>' ) ? array_keys( $files_not_writable ) : '';
+
+                       if ( $files_not_writable )
+                               return new WP_Error( 'files_not_writable', __( 'The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions.' ), implode( ', ', $error_data ) );
+               }
+       }
 
+       /** This filter is documented in wp-admin/includes/update-core.php */
+       apply_filters( 'update_feedback', __( 'Enabling Maintenance mode…' ) );
        // Create maintenance file to signal that we are upgrading
        $maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
        $maintenance_file = $to . '.maintenance';
        $wp_filesystem->delete($maintenance_file);
        $wp_filesystem->put_contents($maintenance_file, $maintenance_string, FS_CHMOD_FILE);
 
+       /** This filter is documented in wp-admin/includes/update-core.php */
+       apply_filters( 'update_feedback', __( 'Copying the required files&#8230;' ) );
        // Copy new versions of WP files into place.
-       $result = copy_dir($from . '/wordpress', $to);
+       $result = _copy_dir( $from . $distro, $to, $skip );
+       if ( is_wp_error( $result ) )
+               $result = new WP_Error( $result->get_error_code(), $result->get_error_message(), substr( $result->get_error_data(), strlen( $to ) ) );
+
+       // Since we know the core files have copied over, we can now copy the version file
+       if ( ! is_wp_error( $result ) ) {
+               if ( ! $wp_filesystem->copy( $from . $distro . 'wp-includes/version.php', $to . 'wp-includes/version.php', true /* overwrite */ ) ) {
+                       $wp_filesystem->delete( $from, true );
+                       $result = new WP_Error( 'copy_failed_for_version_file', __( 'The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions.' ), 'wp-includes/version.php' );
+               }
+               $wp_filesystem->chmod( $to . 'wp-includes/version.php', FS_CHMOD_FILE );
+       }
+
+       // Check to make sure everything copied correctly, ignoring the contents of wp-content
+       $skip = array( 'wp-content' );
+       $failed = array();
+       if ( isset( $checksums ) && is_array( $checksums ) ) {
+               foreach ( $checksums as $file => $checksum ) {
+                       if ( 'wp-content' == substr( $file, 0, 10 ) )
+                               continue;
+                       if ( ! file_exists( $working_dir_local . $file ) )
+                               continue;
+                       if ( file_exists( ABSPATH . $file ) && md5_file( ABSPATH . $file ) == $checksum )
+                               $skip[] = $file;
+                       else
+                               $failed[] = $file;
+               }
+       }
+
+       // Some files didn't copy properly
+       if ( ! empty( $failed ) ) {
+               $total_size = 0;
+               foreach ( $failed as $file ) {
+                       if ( file_exists( $working_dir_local . $file ) )
+                               $total_size += filesize( $working_dir_local . $file );
+               }
+
+               // If we don't have enough free space, it isn't worth trying again.
+               // Unlikely to be hit due to the check in unzip_file().
+               $available_space = @disk_free_space( ABSPATH );
+               if ( $available_space && $total_size >= $available_space ) {
+                       $result = new WP_Error( 'disk_full', __( 'There is not enough free disk space to complete the update.' ) );
+               } else {
+                       $result = _copy_dir( $from . $distro, $to, $skip );
+                       if ( is_wp_error( $result ) )
+                               $result = new WP_Error( $result->get_error_code() . '_retry', $result->get_error_message(), substr( $result->get_error_data(), strlen( $to ) ) );
+               }
+       }
+
+       // Custom Content Directory needs updating now.
+       // Copy Languages
+       if ( !is_wp_error($result) && $wp_filesystem->is_dir($from . $distro . 'wp-content/languages') ) {
+               if ( WP_LANG_DIR != ABSPATH . WPINC . '/languages' || @is_dir(WP_LANG_DIR) )
+                       $lang_dir = WP_LANG_DIR;
+               else
+                       $lang_dir = WP_CONTENT_DIR . '/languages';
+
+               if ( !@is_dir($lang_dir) && 0 === strpos($lang_dir, ABSPATH) ) { // Check the language directory exists first
+                       $wp_filesystem->mkdir($to . str_replace(ABSPATH, '', $lang_dir), FS_CHMOD_DIR); // If it's within the ABSPATH we can handle it here, otherwise they're out of luck.
+                       clearstatcache(); // for FTP, Need to clear the stat cache
+               }
+
+               if ( @is_dir($lang_dir) ) {
+                       $wp_lang_dir = $wp_filesystem->find_folder($lang_dir);
+                       if ( $wp_lang_dir ) {
+                               $result = copy_dir($from . $distro . 'wp-content/languages/', $wp_lang_dir);
+                               if ( is_wp_error( $result ) )
+                                       $result = new WP_Error( $result->get_error_code() . '_languages', $result->get_error_message(), substr( $result->get_error_data(), strlen( $wp_lang_dir ) ) );
+                       }
+               }
+       }
+
+       /** This filter is documented in wp-admin/includes/update-core.php */
+       apply_filters( 'update_feedback', __( 'Disabling Maintenance mode&#8230;' ) );
+       // Remove maintenance file, we're done with potential site-breaking changes
+       $wp_filesystem->delete( $maintenance_file );
+
+       // 3.5 -> 3.5+ - an empty twentytwelve directory was created upon upgrade to 3.5 for some users, preventing installation of Twenty Twelve.
+       if ( '3.5' == $old_wp_version ) {
+               if ( is_dir( WP_CONTENT_DIR . '/themes/twentytwelve' ) && ! file_exists( WP_CONTENT_DIR . '/themes/twentytwelve/style.css' )  ) {
+                       $wp_filesystem->delete( $wp_filesystem->wp_themes_dir() . 'twentytwelve/' );
+               }
+       }
+
+       // Copy New bundled plugins & themes
+       // This gives us the ability to install new plugins & themes bundled with future versions of WordPress whilst avoiding the re-install upon upgrade issue.
+       // $development_build controls us overwriting bundled themes and plugins when a non-stable release is being updated
+       if ( !is_wp_error($result) && ( ! defined('CORE_UPGRADE_SKIP_NEW_BUNDLED') || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) ) {
+               foreach ( (array) $_new_bundled_files as $file => $introduced_version ) {
+                       // If a $development_build or if $introduced version is greater than what the site was previously running
+                       if ( $development_build || version_compare( $introduced_version, $old_wp_version, '>' ) ) {
+                               $directory = ('/' == $file[ strlen($file)-1 ]);
+                               list($type, $filename) = explode('/', $file, 2);
+
+                               // Check to see if the bundled items exist before attempting to copy them
+                               if ( ! $wp_filesystem->exists( $from . $distro . 'wp-content/' . $file ) )
+                                       continue;
+
+                               if ( 'plugins' == $type )
+                                       $dest = $wp_filesystem->wp_plugins_dir();
+                               elseif ( 'themes' == $type )
+                                       $dest = trailingslashit($wp_filesystem->wp_themes_dir()); // Back-compat, ::wp_themes_dir() did not return trailingslash'd pre-3.2
+                               else
+                                       continue;
+
+                               if ( ! $directory ) {
+                                       if ( ! $development_build && $wp_filesystem->exists( $dest . $filename ) )
+                                               continue;
+
+                                       if ( ! $wp_filesystem->copy($from . $distro . 'wp-content/' . $file, $dest . $filename, FS_CHMOD_FILE) )
+                                               $result = new WP_Error( "copy_failed_for_new_bundled_$type", __( 'Could not copy file.' ), $dest . $filename );
+                               } else {
+                                       if ( ! $development_build && $wp_filesystem->is_dir( $dest . $filename ) )
+                                               continue;
+
+                                       $wp_filesystem->mkdir($dest . $filename, FS_CHMOD_DIR);
+                                       $_result = copy_dir( $from . $distro . 'wp-content/' . $file, $dest . $filename);
+
+                                       // If a error occurs partway through this final step, keep the error flowing through, but keep process going.
+                                       if ( is_wp_error( $_result ) ) {
+                                               if ( ! is_wp_error( $result ) )
+                                                       $result = new WP_Error;
+                                               $result->add( $_result->get_error_code() . "_$type", $_result->get_error_message(), substr( $_result->get_error_data(), strlen( $dest ) ) );
+                                       }
+                               }
+                       }
+               } //end foreach
+       }
+
+       // Handle $result error from the above blocks
        if ( is_wp_error($result) ) {
-               $wp_filesystem->delete($maintenance_file);
                $wp_filesystem->delete($from, true);
                return $result;
        }
@@ -270,21 +1012,140 @@ function update_core($from, $to) {
        }
 
        // Upgrade DB with separate request
-       apply_filters('update_feedback', __('Upgrading database'));
+       /** This filter is documented in wp-admin/includes/update-core.php */
+       apply_filters( 'update_feedback', __( 'Upgrading database&#8230;' ) );
        $db_upgrade_url = admin_url('upgrade.php?step=upgrade_db');
        wp_remote_post($db_upgrade_url, array('timeout' => 60));
 
+       // Clear the cache to prevent an update_option() from saving a stale db_version to the cache
+       wp_cache_flush();
+       // (Not all cache backends listen to 'flush')
+       wp_cache_delete( 'alloptions', 'options' );
+
        // Remove working directory
        $wp_filesystem->delete($from, true);
 
        // Force refresh of update information
-       if ( function_exists('delete_transient') )
-               delete_transient('update_core');
+       if ( function_exists('delete_site_transient') )
+               delete_site_transient('update_core');
        else
                delete_option('update_core');
 
-       // Remove maintenance file, we're done.
-       $wp_filesystem->delete($maintenance_file);
+       /**
+        * Fires after WordPress core has been successfully updated.
+        *
+        * @since 3.3.0
+        *
+        * @param string $wp_version The current WordPress version.
+        */
+       do_action( '_core_updated_successfully', $wp_version );
+
+       // Clear the option that blocks auto updates after failures, now that we've been successful.
+       if ( function_exists( 'delete_site_option' ) )
+               delete_site_option( 'auto_core_update_failed' );
+
+       return $wp_version;
+}
+
+/**
+ * Copies a directory from one location to another via the WordPress Filesystem Abstraction.
+ * Assumes that WP_Filesystem() has already been called and setup.
+ *
+ * This is a temporary function for the 3.1 -> 3.2 upgrade, as well as for those upgrading to
+ * 3.7+
+ *
+ * @ignore
+ * @since 3.2.0
+ * @since 3.7.0 Updated not to use a regular expression for the skip list
+ * @see copy_dir()
+ *
+ * @param string $from source directory
+ * @param string $to destination directory
+ * @param array $skip_list a list of files/folders to skip copying
+ * @return mixed WP_Error on failure, True on success.
+ */
+function _copy_dir($from, $to, $skip_list = array() ) {
+       global $wp_filesystem;
+
+       $dirlist = $wp_filesystem->dirlist($from);
+
+       $from = trailingslashit($from);
+       $to = trailingslashit($to);
+
+       foreach ( (array) $dirlist as $filename => $fileinfo ) {
+               if ( in_array( $filename, $skip_list ) )
+                       continue;
+
+               if ( 'f' == $fileinfo['type'] ) {
+                       if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) {
+                               // If copy failed, chmod file to 0644 and try again.
+                               $wp_filesystem->chmod( $to . $filename, FS_CHMOD_FILE );
+                               if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) )
+                                       return new WP_Error( 'copy_failed__copy_dir', __( 'Could not copy file.' ), $to . $filename );
+                       }
+               } elseif ( 'd' == $fileinfo['type'] ) {
+                       if ( !$wp_filesystem->is_dir($to . $filename) ) {
+                               if ( !$wp_filesystem->mkdir($to . $filename, FS_CHMOD_DIR) )
+                                       return new WP_Error( 'mkdir_failed__copy_dir', __( 'Could not create directory.' ), $to . $filename );
+                       }
+
+                       /*
+                        * Generate the $sub_skip_list for the subdirectory as a sub-set
+                        * of the existing $skip_list.
+                        */
+                       $sub_skip_list = array();
+                       foreach ( $skip_list as $skip_item ) {
+                               if ( 0 === strpos( $skip_item, $filename . '/' ) )
+                                       $sub_skip_list[] = preg_replace( '!^' . preg_quote( $filename, '!' ) . '/!i', '', $skip_item );
+                       }
+
+                       $result = _copy_dir($from . $filename, $to . $filename, $sub_skip_list);
+                       if ( is_wp_error($result) )
+                               return $result;
+               }
+       }
+       return true;
 }
 
-?>
+/**
+ * Redirect to the About WordPress page after a successful upgrade.
+ *
+ * This function is only needed when the existing install is older than 3.4.0.
+ *
+ * @since 3.3.0
+ *
+ */
+function _redirect_to_about_wordpress( $new_version ) {
+       global $wp_version, $pagenow, $action;
+
+       if ( version_compare( $wp_version, '3.4-RC1', '>=' ) )
+               return;
+
+       // Ensure we only run this on the update-core.php page. The Core_Upgrader may be used in other contexts.
+       if ( 'update-core.php' != $pagenow )
+               return;
+
+       if ( 'do-core-upgrade' != $action && 'do-core-reinstall' != $action )
+               return;
+
+       // Load the updated default text localization domain for new strings.
+       load_default_textdomain();
+
+       // See do_core_upgrade()
+       show_message( __('WordPress updated successfully') );
+
+       // self_admin_url() won't exist when upgrading from <= 3.0, so relative URLs are intentional.
+       show_message( '<span class="hide-if-no-js">' . sprintf( __( 'Welcome to WordPress %1$s. You will be redirected to the About WordPress screen. If not, click <a href="%2$s">here</a>.' ), $new_version, 'about.php?updated' ) . '</span>' );
+       show_message( '<span class="hide-if-js">' . sprintf( __( 'Welcome to WordPress %1$s. <a href="%2$s">Learn more</a>.' ), $new_version, 'about.php?updated' ) . '</span>' );
+       echo '</div>';
+       ?>
+<script type="text/javascript">
+window.location = 'about.php?updated';
+</script>
+       <?php
+
+       // Include admin-footer.php and exit.
+       include(ABSPATH . 'wp-admin/admin-footer.php');
+       exit();
+}
+add_action( '_core_updated_successfully', '_redirect_to_about_wordpress' );