Fix

extra/simplesamlphp.spec

 %define name      simplesamlphp
 %define summary   SAML IDP/SP written in PHP
-%define version   2.0.0-rc1
+%define version   dev
 %define release   1
 %define license   LGPL 2.1
 %define group     Networking/WWW

src/SimpleSAML/Configuration.php

@@ -42,7 +42,7 @@ class Configuration implements Utils\ClearableState
     /**
      * The release version of this package
      */
-    public const VERSION = '2.0.0-rc1';
+    public const VERSION = 'dev-master';
 
     /**
      * A default value which means that the given option is required.