Ticket #51892: 51892.2.diff

src/wp-admin/includes/update.php

@@ -248 +248 @@
                 $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(