diff --git a/wp-admin/includes/export.php b/wp-admin/includes/export.php
index 74d7c5f823..75c7b4924f 100644
--- a/wp-admin/includes/export.php
+++ b/wp-admin/includes/export.php
@@ -23,6 +23,7 @@ define( 'WXR_VERSION', '1.2' );
* 'auto-draft' status will be skipped.
*
* @since 2.1.0
+ * @since 5.7.0 Added the `post_modified` and `post_modified_gmt` fields to the export file.
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global WP_Post $post Global post object.
@@ -576,6 +577,8 @@ function export_wp( $args = array() ) {
ID; ?>
post_date ); ?>
post_date_gmt ); ?>
+ post_modified ); ?>
+ post_modified_gmt ); ?>
comment_status ); ?>
ping_status ); ?>
post_name ); ?>
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ad97c69de5..39102a4fa6 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
*
* @global string $wp_version
*/
-$wp_version = '5.7-alpha-49909';
+$wp_version = '5.7-alpha-49910';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.