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Version 3.9.1

On May 8, 2014, WordPress 3.9.1 was released to the public. This is a maintenance update for WordPress 3.9.

Installation/Update Information

To download WordPress 3.9.1, update automatically from the Dashboard > Updates menu in your site's admin area or visit https://wordpress.org/download/release-archive/.

For step-by-step instructions on installing and updating WordPress:

If you are new to WordPress, we recommend that you begin with the following:

Summary

From the announcement post, this maintenance release fixes 34 bugs with 3.9, including numerous fixes for multisite networks, customizing widgets while previewing themes, and the updated visual editor. We’ve also made some improvements to the new audio/video playlists feature and made some adjustments to improve performance.

For more, see the list of tickets or the changelog.

List of Files Revised

readme.html
wp-admin/css/edit.css
wp-admin/css/forms-rtl.css
wp-admin/css/login-rtl.min.css
wp-admin/css/admin-menu-rtl.css
wp-admin/css/wp-admin-rtl.min.css
wp-admin/css/edit-rtl.css
wp-admin/css/forms.css
wp-admin/css/admin-menu.css
wp-admin/css/login.min.css
wp-admin/css/wp-admin.min.css
wp-admin/about.php
wp-admin/user/menu.php
wp-admin/includes/ajax-actions.php
wp-admin/js/post.min.js
wp-admin/js/customize-controls.min.js
wp-admin/js/post.js
wp-admin/js/customize-controls.js
wp-admin/custom-header.php
wp-admin/credits.php
wp-admin/freedoms.php
wp-includes/ms-settings.php
wp-includes/class-wp-editor.php
wp-includes/media.php
wp-includes/js/shortcode.min.js
wp-includes/js/customize-views.js
wp-includes/js/media-views.min.js
wp-includes/js/tinymce/plugins/wpview/plugin.js
wp-includes/js/tinymce/plugins/wpview/plugin.min.js
wp-includes/js/tinymce/plugins/wordpress/plugin.js
wp-includes/js/tinymce/plugins/wordpress/plugin.min.js
wp-includes/js/tinymce/plugins/wpeditimage/plugin.js
wp-includes/js/tinymce/plugins/wpeditimage/plugin.min.js
wp-includes/js/tinymce/plugins/wplink/plugin.min.js
wp-includes/js/tinymce/plugins/wplink/plugin.js
wp-includes/js/tinymce/wp-tinymce.js.gz
wp-includes/js/customize-models.js
wp-includes/js/mce-view.js
wp-includes/js/mediaelement/wp-playlist.js
wp-includes/js/mediaelement/wp-mediaelement.css
wp-includes/js/media-audiovideo.min.js
wp-includes/js/shortcode.js
wp-includes/js/media-views.js
wp-includes/js/customize-views.min.js
wp-includes/js/media-audiovideo.js
wp-includes/js/customize-models.min.js
wp-includes/js/mce-view.min.js
wp-includes/version.php
wp-includes/default-widgets.php
wp-includes/script-loader.php
wp-includes/media-template.php
wp-includes/ms-load.php
wp-includes/css/editor-rtl.css
wp-includes/css/editor.css
wp-includes/css/media-views-rtl.min.css
wp-includes/css/media-views.min.css
wp-includes/css/editor-rtl.min.css
wp-includes/css/editor.min.css
wp-includes/css/media-views-rtl.css
wp-includes/css/media-views.css
wp-includes/widgets.php
See also index of various WordPress Versions.