diff --git a/wp-includes/compat.php b/wp-includes/compat.php
index fc6db436fe..f0bdf07974 100644
--- a/wp-includes/compat.php
+++ b/wp-includes/compat.php
@@ -13,6 +13,16 @@
 
 // If gettext isn't available.
 if ( ! function_exists( '_' ) ) {
+	/**
+	 * Compat function to mimic _(), an alias of gettext().
+	 *
+	 * @since 0.71
+	 *
+	 * @see https://php.net/manual/en/function.gettext.php
+	 *
+	 * @param string $message The message being translated.
+	 * @return string
+	 */
 	function _( $message ) {
 		return $message;
 	}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index d169dddf24..b6279c90c2 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.9-alpha-60311';
+$wp_version = '6.9-alpha-60312';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.