Improvement: Declare which major stable version of Moodle this plugin supports

CHANGES.md

@@ -4,6 +4,10 @@ moodle-theme_boost_campus_child
 Changes
 -------
 
+### Unreleased
+
+* 2021-01-06 - Improvement: Declare which major stable version of Moodle this plugin supports (see MDL-59562 for details).
+
 ### v3.9-r1
 
 * 2020-10-06 - Prepare compatibility for Moodle 3.9.

version.php

@@ -28,5 +28,6 @@ $plugin->component = 'theme_boost_campus_child';
 $plugin->version = 2020100700;
 $plugin->release = 'v3.9-r1';
 $plugin->requires = 2020061500;
+$plugin->supported = [39, 39];
 $plugin->maturity = MATURITY_STABLE;
 $plugin->dependencies = array('theme_boost' => 2020061500, 'theme_boost_campus' => 2020093000);