Stop WordPress sending anything but essential data during the update check. By default, WordPress sends the following data during the version update check: Current WordPress version Language PHP version MySQL version If multisite in enabled Number of websites the WordPress install is running (this will be 1 unless it is a multisite) Number of users The WordPress database version during initial installation The WordPress dashboard does not currently provide a way to opt-out of this data collection, but WordPress 4.9 introduced the ability to change whether this data is sent. This plugin ensures only essential data – current WordPress version and language – are sent during the update check. There are no options to configure with this plugin.