WordPress 3.4 is available! Please update now.
Enhanced theme control
Customize theme options before activating a new theme using Theme Customizer
Use Theme Previewer to customize current theme without changing the front-end design
Custom Headers
Improved Custom Headers with flexible sizes
Selecting Custom Header Images and Custom Background Images from Media Library Screen
Media improvements
Support HTML in image captions
Under the Hood improvements
Improvements in WordPress internationalization and localization (more info)
Different split in translation POT files for faster translations
Codex XML-RPC information update accessed via XML-RPC_WordPress_API
WP_Query improvements
User Features
General
Properly reflect the language on RSS feeds
Add support for DFW for all instances of the editor
Update license.txt to include ‘How to Apply These Terms to Your New Programs’ at the request of the FSF https://www.gnu.org/licenses/gpl-2.0.txt
Dashboard
Dashboard Widgets are available for translation
Help Tabs improvements
Remove Recently Updated from Plugins widget
Add a link to the Customizer from the Admin Bar appearance menu
Improve the Recent Comments dashboard widget performance on sites with large amounts of comments
Posts
Add new comment from post edit screen
Display menu_order value in Quick Edit for non-hierarchical post types
Change ‘Post Format’ bulk/quick edit label to ‘Format’
Media
HTML support has been added to image caption field
Add Twitter.com as an oEmbed providers
Links
Default Links are now available for translation
Comments
Remove “Approve” bulk action when viewing spam comments as it isn’t shown in the row actions
Appearance
Update the Theme Customizer in Twenty Ten and Twenty Eleven themes
Faster theme searching
Post formats should show_in_nav_menus when the current theme supports them
Infinite scroll for themes.php and theme-install.php. Bump per page limit for themes.php to 999
Add Sort by, and Number of Links to show, to the Links widget
Introduce new registration methods for custom headers and custom backgrounds
Default to keyword searches for the theme installer
Contextual help updates
Update install screens to use the new stars
Plugins
Clean up the Plugin installer screenshots page; adds CSS resize support to the images to prevent them requiring scrolling and falling below the FYI box
Default to keyword searches for the plugin installer
Update install screens to use the new stars
Tools
Bump WXR_VERSION because of plugins trac 501867 / r19858 which affects the regex based importer
Update contextual help
Users
After adding a user, take them back to users.php with an ‘Edit user’ link in the message
Correct how “Display name publicly as” works when other name fields change
Settings
Update color scheme definition for gray admin theme
Use blue arrows for blue admin’s screen options and help tabs; adjust baseline to be more compatible with Firefox
Timezone and start of week can now be specify through translated strings (rather than PHP)
Install Process
Don’t allow empty database prefix for multisite
Issue an error during the WordPress install process if wp-config.php is configured with an empty database table prefix, which is not supported
Remove references to specific search engines
