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9Jan 2014
Jan 9, 2014

Now wordpress update to version 3.6


On August 1, 2013, WordPress Version 3.6, named for Oscar Peterson, was released to the public. For more information on this enhancement and bug-fix release, read the WordPress Blog, the Release Post, and see the Changelog for 3.6.

For Version 3.6, the database version (db_version in wp_options) changed to 24448, and the Trac revision was r24973.

  • Highlights
  • New Default Theme – Twenty Thirteen
    • Focus on blogging
    • Single column layout with Sidebar / Widgets in the footer
    • Latest Theme Features support, particularly Post Formats and Semantic Markup
    • Font-based icons (Genericons)
  • Admin Enhancements
    • UI improvements on Navigation Menus Screen
    • Revisions revised to be more dynamic and scalable
    • Autosave and Post Locking
    • Preview Audio and Video on Media Edit Screen
    • In-line login following expired sessions
  • For Developers
    • External Libraries have been updated. More Info
    • New audio/video APIs give developers access to powerful media metadata, like ID3 tags.
    • Filters for revisions, allowing you to set the number of revisions ad hoc instead of only via a define. More Info
    • Semantic Markup allows themes to choose improved HTML5 markup for search forms, comment forms, and comment lists.
    • Search content for shortcodes with has_shortcode() and adjust shortcode attributes with a new filter.


What’s New



  • Use digraphs for German umlauts in remove_accents()
  • Use Ellipses instead of …
  • Consistently apply ‘register’ filter
  • Automatically esc_url() the URL echoed by the_permalink()
  • Allow developers to specify an Accept-Encoding header in WP_Http::accept_encoding()
  • Pass tag object and args array to topic_count_text_callback from wp_generate_tag_cloud()
  • Use wp_unslash() instead of stripslashes_deep
  • Improve the performance of backslashit() by avoiding regular expressions
  • Disallow accidental or negligent deregistering of critical scripts in the admin. Covers jQuery, jQuery UI, Underscore, and Backbone
  • Remove the_title_attribute() from anchors with the_title() as text
  • Display username (user_login) rather than user_nicename in Toolbar below username



  • The Revision Management UI saw significant improvement
  • Shortcode attributes can now be filtered via shortcode_atts_$shortcode hook
  • The ability to change post formats was removed from Quick Edit
  • A ‘not_found’ label was added for non-hierarchical taxonomys
  • Better UX for dealing with multiple users editing the same content (aka Post Locking)
  • Audio/Video support More Info



  • Add oEmbed support for Rdio and Spotify
  • .webm (video/webm) was added to the MIME types list
  • The Media Library can now be sorted by Author name
  • Bug fixed where initial gallery link-to setting wasn’t applied
  • Return from image_downsize() earlier if a custom resize function is used
  • Orientation information was added to items in gallery_shortcode()
  • New Audio and Video previews are available on the Media > Edit Screen
  • Added wp_audio_shortcode() and wp_video_shortcode()



  • Improve wp_list_comments() markup
  • Add the ability to use HTML5 input types in the comment form



  • The Navigation Menus UI got a significant refresh
  • The Customizer can now be accessed via the Appearance menu
  • Screen options can now be added to the Appearance > Widgets Screen



  • Prevent plugins from overriding jQuery in the admin
  • Prevent plugins with certain filenames from breaking links in the admin menu



  • Remove the three default contact methods (AIM, YIM, Jabber) for new installs.
  • Pass old roles to set_user_role action
  • The workflow for deleting users has been improved



  • Allow any post format to be set as default in Settings > Writing Screen



  • Better keyboard/screen reader accessibility in the Nav Menus UI
  • Background image’s “select a file” link works with keyboard navigation


Under The Hood



  • Use official MIME types for Windows Media file extensions
  • Redirect after save on options-permalink.php to ensure permalinks are fully flushed
  • Only show database errors if both WP_DEBUG and WP_DEBUG_DISPLAY are enabled


Bug Fixes

  • Strip slashes from passwords sent to new users by email
  • Make sure the url returned by post_preview() is filterable with preview_post_link
  • Fix handling of ’0′ as meta_value argument in get_pages()
  • Correctly print ‘after’ data when scripts are concatenated in WP_Styles class
  • Properly truncate UTF-8 post slugs in wp_unique_post_slug()
  • Avoid PHP notices in Media Library if an attachment parent does not exist
  • Fix some tabbing issues on the post editing screen
  • Avoid notice by checking for user agent in wp_new_comment()
  • Avoid notice in parent_dropdown() by checking if post exists before testing post id
  • Prevent an unintended visibility change from “Password protected” to “Public” when updating the post
  • Avoid a warning in mb_internal_encoding by making sure we have a charset first
  • Fix unnecessarily persistent “pending email change” admin message
  • Ensure we strictly compare ‘all options’ and ‘not options’ when protecting these special options
  • Make sure to reset the modal after gallery insertion
  • Add sanity checks on image metadata to avoid warnings
  • Avoid an undefined index notice in get_post_type_archive_feed_link()
  • Avoid notices when array args are missing in WP_Image_Editor::multi_resize()
  • Fix notice in wp_generate_attachment_metadata()
  • Avoid PHP notices when deleting or restoring an item that no longer exists



  • Pass blog_id to the wpmu_drop_tables filter



  • XML-RPC: Return an error for getRecentPosts (mw and blogger) if the user does not have edit_posts
  • XML-RPC: Standardize home/site url labels with core labels
  • Preserve alpha in WP_Image_Editor_GD when images are not resized
  • Make sure WP_Http funnels all redirect requests through WP_Http::request() to ensure the proper transport is used



  • An arg parameter was added for wp_nonce_url()
  • Allow paths with two consecutive dots to be passed to home_url() and all related *_url() functions
  • Document 7th parameter, $callback_args in add_meta_box()
  • Confirm a user exists before deleting them in wp_delete_user() and wpmu_delete_user()
  • Return WP_Error from wp_crop_image() if saving has failed
  • Bail early with correct WP_Error if invalid post ID passed to wp_insert_post()
  • Remove duplicate calls to add_new_user_to_blog()
  • Introduce wp_add_id3_tag_data()
  • Introduce wp_read_video_metadata()
  • Introduce wp_read_audio_metadata()
  • Introduce wp_nav_menu_disabled_check()
  • Introduce wp_nav_menu_update_menu_items()
  • Introduce do_accordion_sections()
  • Introduce wp_slash()
  • Introduce wp_unslash()
  • Introduce wp_is_writable()
  • Introduce wp_auth_check_load()
  • Introduce wp_auth_check()
  • Introduce get_tag_regex()
  • Introduce wp_registration_url()
  • Introduce wp_heartbeat_settings()
  • Introduce wp_mediaelement_fallback()
  • Introduce wp_get_audio_extensions()
  • Introduce wp_audio_shortcode()
  • Introduce wp_get_video_extensions()
  • Introduce wp_video_shortcode()
  • Introduce wp_embed_handler_audio()
  • Introduce wp_embed_handler_video()
  • Introduce get_attached_media()
  • Introduce get_post_galleries()
  • Introduce get_post_galleries_images()
  • Introduce get_post_gallery()
  • Introduce get_post_gallery_images()
  • Introduce wp_post_revision_title_expanded()
  • Introduce paginate_content()
  • Introduce get_paged_content()
  • Introduce wp_revisions_enabled()
  • Introduce wp_revisions_to_keep()
  • Introduce wp_text_diff_with_count()
  • Introduce shortcode_exists()
  • Introduce has_shortcode()
  • Introduce wp_parse_post_content()
  • Introduce wp_remove_object_terms()
  • Introduce wp_add_object_terms()



  • Add self_link in self_link()
  • Add get_comments_link in get_comments_link()
  • Add comments_link_feed in comments_link_feed()
  • Add comment_link in get_comment_link()
  • Add nav_menu_link_attributes in Walker_Nav_Menu::start_el()
  • Add wp_revisions_to_keep in wp_revisions_to_keep()
  • Add wp_link_pages in wp_link_pages()
  • Add search_form_format in get_search_form()
  • Add user_search_columns in WP_User_Query::prepare_query()
  • Add wp_http_accept_encoding in WP_Http_Encoding::accept_encoding()
  • Add widget_meta_poweredby in WP_Widget_Meta::widget()


Scripts, External Libraries

  • Update to jQuery Color 2.2.1
  • Update to Backbone 1.0.0
  • Update to jQuery UI 1.10.3
  • Services_JSON 1.0.3
  • Iris 1.0.3
  • hoverIntent r7
  • MediaElement.js 2.11.1 (New)
  • getid3 1.9.7 (New)



  • Deprecate wp_convert_bytes_to_hr() in favor of size_format()
  • Deprecate get_user_id_from_string() in favor of get_user_by() where `$field` is ‘email’ or ‘login’
  • Deprecate wpdb::escape() in favor of wpdb::prepare() or esc_sql()

From http://codex.wordpress.org/Version_3.6

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