WordPress/wp-admin/about.php

<?php
/**
 * About This Version administration panel.
 *
 * @package WordPress
 * @subpackage Administration
 */

/** WordPress Administration Bootstrap */
require_once( dirname( __FILE__ ) . '/admin.php' );

$title = __( 'About' );

list( $display_version ) = explode( '-', $wp_version );

include( ABSPATH . 'wp-admin/admin-header.php' );
?>
<div class="wrap about-wrap">

<h1><?php printf( __( 'Welcome to WordPress&nbsp;%s' ), $display_version ); ?></h1>

<div class="about-text"><?php printf( ( 'Thank you for updating! WordPress %s refines the way you write and edit.<br />We hope you like&nbsp;it.' ), $display_version ); ?></div>

<div class="wp-badge"><?php printf( __( 'Version %s' ), $display_version ); ?></div>

<h2 class="nav-tab-wrapper">
	<a href="about.php" class="nav-tab nav-tab-active">
		<?php _e( 'What&#8217;s New' ); ?>
	</a><a href="credits.php" class="nav-tab">
		<?php _e( 'Credits' ); ?>
	</a><a href="freedoms.php" class="nav-tab">
		<?php _e( 'Freedoms' ); ?>
	</a>
</h2>

<div class="changelog">
	<h2 class="about-headline-callout"><?php echo ( 'A smoother media editing&nbsp;experience' ); ?></h2>
	<div class="about-overview">
		<img class="about-overview-img" src="//wordpress.org/images/core/3.9/overview.png?0" />
	</div>
	<div class="feature-section col three-col">
		<div class="col-1">
			<img src="//wordpress.org/images/core/3.9/editor.jpg?0" />
			<h4><?php echo ( 'Improved visual editor' ); ?></h4>
			<p><?php echo ( 'We&#8217;ve updated the visual editor with better mobile support, improved speed and accessibility, and a modern API for developers.' ); ?></p>
			<p><?php echo ( 'The visual editor will now automatically clean up the messy styling that certain word processing applications insert when copying and pasting. Yeah, we&#8217;re talking about you, Microsoft Word.' ); ?></p>
		</div>
		<div class="col-2">
			<img src="//wordpress.org/images/core/3.9/image.jpg?0" />
			<h4><?php echo ( 'Improved image editing' ); ?></h4>
			<p><?php echo ( 'We&#8217;ve made it much easier to edit your images, with quicker access to cropping and rotation tools. You can also scale images directly in the editor to find just the right fit.' ); ?></p>
		</div>
		<div class="col-3 last-feature">
			<img src="//wordpress.org/images/core/3.9/drop.jpg?0" />
			<h4><?php echo ( 'Drag and drop your images' ); ?></h4>
			<p><?php echo ( 'Grab images from your desktop and drop them directly onto the editor, saving yourself that extra step.' ); ?></p>
		</div>
	</div>

	<hr>

	<div class="feature-section col two-col">
		<div class="col-1">
			<img src="//wordpress.org/images/core/3.9/gallery.jpg?0" />
			<h4><?php echo ( 'Gallery previews' ); ?></h4>
			<p><?php echo ( 'Galleries display a beautiful grid of images right in the editor, just like they do in your published post.' ); ?></p>
		</div>
		<div class="col-2 last-feature">
			<h4><?php echo ( 'Do more with audio and video' ); ?></h4>
			<p><?php echo ( 'Images have galleries; now we&#8217;ve added simple audio and video playlists, so you can showcase your music and clips.' ); ?></p>
		</div>
	</div>
</div>

<hr>

<div class="changelog customize">
	<h3><?php echo ( 'Customize your heart out' ); ?></h3>

	<div class="feature-section col two-col">
		<div>
			<h4><?php echo ( 'Live widget previews' ); ?></h4>
			<p><?php echo ( 'Add, edit, and rearrange your site&#8217;s widgets right in the theme customizer. No &#8220;save and surprise&#8221; &mdash; preview your changes live and only save them when you&#8217;re ready.' ); ?></p>
			<p><?php echo ( 'The improved header image tool also lets you upload, crop, and manage headers while customizing your theme.' ); ?></p>
		</div>
		<div class="last-feature">
			<img src="//wordpress.org/images/core/3.9/theme.jpg?0" />
			<h4><?php _e( 'Stunning new theme browser' ); ?></h4>
			<p><?php _e( 'Looking for a new theme should be easy and fun. Lose yourself in the boundless supply of free WordPress.org themes with the beautiful new theme browser.' ); ?></p>
			<p><a href="<?php echo network_admin_url( 'theme-install.php' ); ?>" class="button button-large button-primary">Browse Themes</a></p>
		</div>
	</div>
</div>

<hr>

<div class="changelog under-the-hood">
	<h3><?php _e( 'Under the Hood' ); ?></h3>

	<div class="feature-section col three-col">
		<div>
			<h4><?php _e( 'Semantic Captions and Galleries' ); ?></h4>
			<p><?php _e( 'Theme developers have new options for images and galleries that use intelligent HTML5 markup.' ); ?></p>

			<h4><?php _e( 'Inline Code Documentation' ); ?></h4>
			<p><?php _e( 'Every action and filter hook in WordPress is now documented, along with expanded documentation for the media manager and customizer APIs.' ); ?></p>
		</div>
		<div>
			<h4><?php _e( 'External Libraries' ); ?></h4>
			<p><?php _e( 'Updated libraries: TinyMCE&nbsp;4, jQuery&nbsp;1.11, Backbone&nbsp;1.1, Underscore&nbsp;1.6, Plupload&nbsp;2, MediaElement&nbsp;2.14, Masonry&nbsp;3.' ); ?></p>

			<h4><?php _e( 'Improved Database Layer' ); ?></h4>
			<p><?php _e( 'Database connections are now more fault-resistant and have improved compatibility with PHP 5.5 and MySQL 5.6.' ); ?></p>
		</div>
		<div class="last-feature">
			<h4><?php _e( 'New Utility Functions' ); ?></h4>
			<p><?php _e( 'Identify a hook in progress with <code>doing_action()</code> and <code>doing_filter()</code>, and manipulate custom image sizes with <code>has_image_size()</code> and <code>remove_image_size()</code>.' ); ?></p>
			<p><?php _e( 'Plugins and themes registering custom theme sizes can now register suggested cropping points. For example, prevent heads from being cropped out of photos with a top-center crop.' ); ?></p>
		</div>
</div>

<hr>

<div class="return-to-dashboard">
	<?php if ( current_user_can( 'update_core' ) && isset( $_GET['updated'] ) ) : ?>
	<a href="<?php echo esc_url( self_admin_url( 'update-core.php' ) ); ?>"><?php
		is_multisite() ? _e( 'Return to Updates' ) : _e( 'Return to Dashboard &rarr; Updates' );
	?></a> |
	<?php endif; ?>
	<a href="<?php echo esc_url( self_admin_url() ); ?>"><?php
		is_blog_admin() ? _e( 'Go to Dashboard &rarr; Home' ) : _e( 'Go to Dashboard' ); ?></a>
</div>

</div>
<?php

include( ABSPATH . 'wp-admin/admin-footer.php' );

// These are strings we may use to describe maintenance/security releases, where we aim for no new strings.
return;

_n_noop( 'Maintenance Release', 'Maintenance Releases' );
_n_noop( 'Security Release', 'Security Releases' );
_n_noop( 'Maintenance and Security Release', 'Maintenance and Security Releases' );

/* translators: 1: WordPress version number. */
_n_noop( '<strong>Version %1$s</strong> addressed a security issue.',
         '<strong>Version %1$s</strong> addressed some security issues.' );

/* translators: 1: WordPress version number, 2: plural number of bugs. */
_n_noop( '<strong>Version %1$s</strong> addressed %2$s bug.',
         '<strong>Version %1$s</strong> addressed %2$s bugs.' );

/* translators: 1: WordPress version number, 2: plural number of bugs. Singular security issue. */
_n_noop( '<strong>Version %1$s</strong> addressed a security issue and fixed %2$s bug.',
         '<strong>Version %1$s</strong> addressed a security issue and fixed %2$s bugs.' );

/* translators: 1: WordPress version number, 2: plural number of bugs. More than one security issue. */
_n_noop( '<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bug.',
         '<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bugs.' );

__( 'For more information, see <a href="%s">the release notes</a>.' );