diff --git a/wp-includes/media.php b/wp-includes/media.php
index 4eb2886205..9fac913386 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -861,7 +861,7 @@ function wp_get_attachment_image($attachment_id, $size = 'thumbnail', $icon = fa
 
 		// Generate 'srcset' and 'sizes' if not already present.
 		if ( empty( $attr['srcset'] ) ) {
-			$image_meta = get_post_meta( $attachment_id, '_wp_attachment_metadata', true );
+			$image_meta = wp_get_attachment_metadata( $attachment_id );
 
 			if ( is_array( $image_meta ) ) {
 				$size_array = array( absint( $width ), absint( $height ) );
@@ -990,7 +990,7 @@ function wp_get_attachment_image_srcset( $attachment_id, $size = 'medium', $imag
 	}
 
 	if ( ! is_array( $image_meta ) ) {
-		$image_meta = get_post_meta( $attachment_id, '_wp_attachment_metadata', true );
+		$image_meta = wp_get_attachment_metadata( $attachment_id );
 	}
 
 	$image_src = $image[0];
@@ -1206,7 +1206,7 @@ function wp_get_attachment_image_sizes( $attachment_id, $size = 'medium', $image
 	}
 
 	if ( ! is_array( $image_meta ) ) {
-		$image_meta = get_post_meta( $attachment_id, '_wp_attachment_metadata', true );
+		$image_meta = wp_get_attachment_metadata( $attachment_id );
 	}
 
 	$image_src = $image[0];
@@ -1239,7 +1239,7 @@ function wp_calculate_image_sizes( $size, $image_src = null, $image_meta = null,
 		$width = absint( $size[0] );
 	} elseif ( is_string( $size ) ) {
 		if ( ! $image_meta && $attachment_id ) {
-			$image_meta = get_post_meta( $attachment_id, '_wp_attachment_metadata', true );
+			$image_meta = wp_get_attachment_metadata( $attachment_id );
 		}
 
 		if ( is_array( $image_meta ) ) {
@@ -1314,7 +1314,7 @@ function wp_make_content_images_responsive( $content ) {
 	}
 
 	foreach ( $selected_images as $image => $attachment_id ) {
-		$image_meta = get_post_meta( $attachment_id, '_wp_attachment_metadata', true );
+		$image_meta = wp_get_attachment_metadata( $attachment_id );
 		$content = str_replace( $image, wp_image_add_srcset_and_sizes( $image, $image_meta, $attachment_id ), $content );
 	}
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index d18d1839bb..530fc52889 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38295';
+$wp_version = '4.7-alpha-38296';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.