diff --git a/version.php b/version.php
index 161fc2f6..2149b9e4 100644
--- a/version.php
+++ b/version.php
@@ -24,10 +24,10 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->component = 'block_opencast';
-$plugin->release = 'development-version';
+$plugin->release = 'v4.0-r1';
 $plugin->version = 2023030100;
 $plugin->requires = 2020061500; // Requires Moodle 3.9+.
-$plugin->maturity = MATURITY_ALPHA;
+$plugin->maturity = MATURITY_STABLE;
 $plugin->dependencies = array(
     'tool_opencast' => 2023030100
 );