We will be performing scheduled maintenance on Mendix Cloud v4 - EU. The application infrastructure will be upgraded to the latest version. During the upgrade all application instances will be automatically stopped and restarted on the upgraded application infrastructure. There will be no unavailability for Mendix 7 and 8 Apps running in a multi-instance setup. Mendix 7 and 8 Apps that are horizontally scaled. Only 1 instance of your multi instance app will be restarted at a time. Downtime for single instance Mendix applications will be minimized to a couple of seconds. During the upgrade it will not be possible to manage/deploy your Mendix application from the Developer Portal and Webmodeler.