Index: wp-includes/post-template.php
===================================================================
--- wp-includes/post-template.php	(revision 24156)
+++ wp-includes/post-template.php	(working copy)
@@ -1312,9 +1312,9 @@
 	/* translators: revision date format, see http://php.net/date */
 	$datef = _x( 'j F, Y @ G:i', 'revision date format');
 	/* translators: 1: date */
-	$autosavef = __( '%1$s [Autosave]' );
+	$autosavef = _x( '%1$s [Autosave]', 'post revision title extra' );
 	/* translators: 1: date */
-	$currentf  = __( '%1$s [Current Revision]' );
+	$currentf  = _x( '%1$s [Current Revision]', 'post revision title extra' );
 
 	$date = date_i18n( $datef, strtotime( $revision->post_modified ) );
 	if ( $link && current_user_can( 'edit_post', $revision->ID ) && $link = get_edit_post_link( $revision->ID ) )
Index: wp-admin/includes/ajax-actions.php
===================================================================
--- wp-admin/includes/ajax-actions.php	(revision 24156)
+++ wp-admin/includes/ajax-actions.php	(working copy)
@@ -2245,7 +2245,9 @@
 			$date
 		);
 
+		/* translators: 1: date */
 		$autosavef = _x( '%1$s [Autosave]', 'post revision title extra' );
+		/* translators: 1: date */
 		$currentf  = _x( '%1$s [Current Revision]', 'post revision title extra' );
 
 		if ( ! $post = get_post( $post_id ) )
Index: wp-admin/js/revisions.js
===================================================================
--- wp-admin/js/revisions.js	(revision 24156)
+++ wp-admin/js/revisions.js	(working copy)
@@ -1,7 +1,7 @@
 window.wp = window.wp || {};
 
 (function($) {
-	var Revision, Revisions, Diff, l10n, revisions;
+	var Revision, Revisions, Diff, revisions;
 
 	revisions = wp.revisions = function() {
 		Diff = revisions.Diff = new Diff();
@@ -9,14 +9,10 @@
 
 	_.extend( revisions, { model: {}, view: {}, controller: {} } );
 
-	// Link any localized strings.
-	l10n = revisions.model.l10n = typeof wpRevisionsL10n === 'undefined' ? {} : wpRevisionsL10n;
+	// Link settings.
+	revisions.model.settings = typeof wpRevisionsSettings === 'undefined' ? {} : wpRevisionsSettings;
 
-	// Link any settings.
-	revisions.model.settings = l10n.settings || {};
-	delete l10n.settings;
 
-
 	/**
 	 * ========================================================================
 	 * CONTROLLERS
@@ -330,12 +326,6 @@
 					Diff.rightDiff = ui.values[1];
 				}
 
-				if ( 0 === Diff.leftDiff ) {
-					$( '#revision-diff-container' ).addClass( 'current-version' );
-				} else {
-					$( '#revision-diff-container' ).removeClass( 'current-version' );
-				}
-
 				Diff.revisionView.render();
 			}
 		},
Index: wp-admin/css/wp-admin.css
===================================================================
--- wp-admin/css/wp-admin.css	(revision 24156)
+++ wp-admin/css/wp-admin.css	(working copy)
@@ -3694,8 +3694,6 @@
 
 .comparing-two-revisions #diff-previous-revision,
 .comparing-two-revisions #diff-next-revision,
-#diff-title-from-current-version,
-.comparing-two-revisions.current-version #diff-title-from-current-version,
 #diff-header-from {
 	display: none;
 }
Index: wp-admin/revision.php
===================================================================
--- wp-admin/revision.php	(revision 24156)
+++ wp-admin/revision.php	(working copy)
@@ -78,10 +78,6 @@
 
 wp_enqueue_script( 'revisions' );
 
-$strings = array(
-	'diffFromTitle' => _x( 'From: %s', 'revision from title'  ),
-	'diffToTitle'   => _x( 'To: %s', 'revision to title' )
-);
 
 $settings = array(
 	'post_id'     => $post->ID,
@@ -89,8 +85,7 @@
 	'revision_id' => $revision_id
 );
 
-$strings['settings'] = $settings;
-wp_localize_script( 'revisions', 'wpRevisionsL10n', $strings );
+wp_localize_script( 'revisions', 'wpRevisionsSettings', $settings );
 
 require_once( './admin-header.php' );
 
@@ -125,18 +120,14 @@
 
 	<div id="diff-header">
 		<div id="diff-header-from" class="diff-header">
-			<div id="diff-title-from-current-version" class="diff-title">
-				<?php printf( '<strong>%1$s</strong> %2$s.' , __( 'From:' ), __( 'the current version' ) ); ?>
-			</div>
-
 			<div id="diff-title-from" class="diff-title">
-				<strong><?php _e( 'From:' ); ?></strong> {{{ data.titleFrom }}}
+				<strong><?php _ex( 'From:', 'Followed by post revision info' ); ?></strong> {{{ data.titleFrom }}}
 			</div>
 		</div>
 
 		<div id="diff-header-to" class="diff-header">
 			<div id="diff-title-to" class="diff-title">
-				<strong><?php _e( 'To:' ); ?></strong> {{{ data.titleTo }}}
+				<strong><?php _e( 'To:', 'Followed by post revision info' ); ?></strong> {{{ data.titleTo }}}
 			</div>
 
 			<input type="button" id="restore-revision" class="button button-primary" data-restore-link="{{{ data.restoreLink }}}" value="<?php esc_attr_e( 'Restore This Revision' )?>" />
@@ -150,11 +141,11 @@
 
 <script id="tmpl-revision-interact" type="text/html">
 	<div id="diff-previous-revision">
-		<input class="button" type="button" id="previous" value="<?php esc_attr_e( 'Previous' ); ?>" />
+		<input class="button" type="button" id="previous" value="<?php echo esc_attr_x( 'Previous', 'Button label for a previous revision' ); ?>" />
 	</div>
 
 	<div id="diff-next-revision">
-		<input class="button" type="button" id="next" value="<?php esc_attr_e( 'Next' ); ?>" />
+		<input class="button" type="button" id="next" value="<?php echo esc_attr_x( 'Next', 'Button label for a next revision' ); ?>" />
 	</div>
 
 	<div id="diff-slider" class="wp-slider"></div>