Test on Oracle and one other database (e.g. MySQL or PostgreSQL) Check out the Moodle 3.5.2 tag git checkout v3.5.2 Install your Moodle instance. Log in as an admin and go to Site administration / Services / OAuth2 services Create a new Facebook service. (It doesn't matter what the Client ID and Secret are, you can put anything). Check out the latest version with this patch applied. master: git checkout master 36: git checkout MOODLE_36_STABLE 35: git checkout MOODLE_35_STABLE Upgrade your Moodle site Confirm that the upgrade succeeds. Go back to the OAuth2 services page. Confirm that the Facebook logo is shown beside the OAuth2 issuer name.