Index: src/wp-admin/includes/update.php
===================================================================
--- src/wp-admin/includes/update.php	(revision 49706)
+++ src/wp-admin/includes/update.php	(working copy)
@@ -248,6 +248,12 @@
 		$cur->response = '';
 	}
 
+	$is_development_version = preg_match( '/alpha|beta|RC/', $cur->version );
+
+	if ( $is_development_version && 'latest' === $cur->response ) {
+		$cur->response = 'development';
+	}
+
 	switch ( $cur->response ) {
 		case 'development':
 			return sprintf(