Update version.php

version.php

@@ -24,7 +24,8 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->maturity = MATURITY_RC;
+$plugin->maturity = MATURITY_STABLE;
+$plugin->release   = 'v3.11-r1';
 $plugin->version = 2021101900;        // The current plugin version (Date: YYYYMMDDXX).
 $plugin->requires = 2020061500;        // Requires this Moodle version.
 $plugin->component = 'filter_opencast'; // Full name of the plugin.