first commit

wp-content/plugins/mailchimp-for-wp/includes/admin/migrations/3.0.0-general-options.php

@@ -0,0 +1,16 @@
+<?php
+
+defined( 'ABSPATH' ) or exit;
+
+// transfer option
+$options = (array) get_option( 'mc4wp_lite', array() );
+
+// merge options, with Pro options taking precedence
+$pro_options = (array) get_option( 'mc4wp', array() );
+$options     = array_merge( $options, $pro_options );
+
+// update options
+update_option( 'mc4wp', $options );
+
+// delete old option
+delete_option( 'mc4wp_lite' );