On December 19, we are upgrading our production environment from PHP 7.0 to 7.2. To be able to check if your applications still work under this new PHP version, we have already deployed PHP 7.2 on our development environment, giving you a way to test your apps.
We expect a maximum of 15 minutes on downtime on each of our servers, and since we will be deploying this upgrade server-by-server, clients shouldn't experience no more downtime than 5 minutes. In most cases, clients won't experience any downtime at all since they are automatically switched over to functioning servers.
This maintenance will take place in the early morning of Tuesday December 19. We're aiming to finish the maintenance before 8 am.