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Version 3.8

On December 12, 2013, WordPress Version 3.8, named for Charlie Parker, 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 3.8.

For Version 3.8, the database version (db_version in wp_options) changed to 26691, and the Trac revision was rxxxxx.

Highlights

  • Introduces a new, modern admin design
    • A fresh, uncluttered design
    • Clean typography with Open Sans
    • Superior contrast and large, comfortable type
    • Responsive interfaces throughout
    • Refined, theme management
    • Smoother, click-to-add widget management
  • New Default Theme - Twenty Fourteen
    • Easily create a responsive magazine website with a sleek, modern design.
    • Feature your favorite homepage content in either a grid or a slider.
    • Use the three widget areas to customize your website, and change your content's layout with a full-width page template and a contributor page to show off your authors.
  • For Developers
    • External Libraries have been updated.
    • Better RTL support
    • Theme screenshots' size have increased from 600 × 450 to 880 × 660.

What's New

General

  • Replace PNG-based plugins ratings stars with Dashicons for performance gains
  • Improved help tab text in various screens
  • Clicking "Check Again" on the Updates screen now provides more immediate feedback

Dashboard

  • Consolidate several Dashboard widgets to improve readability
  • Replace the 'Right Now' widget with the new and improved 'At a Glance' widget

Appearance

  • Introduce 8 new admin color schemes
  • Improved readability throughout using Open Sans typeface (where supported)
  • Responsive Toolbar for smaller-screen devices
  • Leverage Dashicons instead of icon sprites for crisper experience on all resolutions
  • Big RTL improvements throughout
  • Make the dashboard more usable on any size device with responsive all the things
  • Improve the login screen experience for Internet Explorer 8 users
  • Improve Quick Edit experience for non-English users
  • Improve the Menus experience for mobile users

Themes

  • New Default Theme -- Twenty Fourteen
  • Make it possible to check for any post format assigned to a post with has_post_format()
  • Better custom background theme support defaults, can now specify 'default-repeat', 'default-position-x', and 'default-attachment' arguments for background images.
  • Tags for width changed to layout: responsive-layout, fluid-layout, and fixed-layout
  • New tag: accessibility-ready to denote a theme is aware of accessibility best practices such as color contrast, keyboard navigation, and form/link focus. See WP theme accessibility guidelines.

Widgets

  • New click-to-add interface for adding widgets to sidebars
  • Improved interface for devices of all resolutions
  • Better drag-and-drop experience

Accessibility

  • Make list table row actions keyboard accessible
  • Improve color contrast throughout the admin

Multisite

  • Improved performance when deleting users in Multisite

Under The Hood

General

  • Heartbeat performance and API improvements
  • A $taxonomy argument was added to each of the adjacent post functions.
  • Define $is_nginx in vars.php
  • Apply capital_P_dangit() to the wp_title filter
  • Make sure ajaxurl is defined in the Customizer
  • validate_active_plugins() now checks the manage_network_plugins capability instead of is_super_admin()
  • Add a show_metabox parameter to register_taxonomy()
  • Make it easier to target video shortcodes by adding a wp-video class to the parent container
  • Add CSSMin, SASS, CSSJanus, and jsHint to build tools for core development

Bug Fixes

  • Fix bug where top-level categories were only redirecting if they had no children
  • Fix bug in wp_get_object_terms() where returned were strings not integers
  • Fix a bug where passing a null value to meta_query resulted in wonkiness with the comparison operator
  • Fix "'wp_signups' already exists for query" error after updating a Multisite network
  • Fix bug in get_bookmarks() caused by missing parentheses
  • Fix comment_notification_recipients filter behavior so that it is still respected even on comments left by the post author
  • Fix a date comparison error in dashboard_relative_date()
  • Fix keyboard accessibility for row actions in list tables.
  • Fix no-js and accessibility modes in in the Widgets screen
  • Fix a bug where menus could still be assigned to a non-existent theme location
  • Silence jQuery Migrate errors in the General settings page

Multisite

Classes

Functions


Actions & Filters

Actions

Filters

External Libraries

  • Add a copyright notice to zxcvbn (password strength meter) script

Deprecated

Miscellaneous

And see others WordPress Versions.