During the change window of June 6, we will perform maintenance on all Windows 2008 R2 server. During this maintenance, the server will be restarted. If this date doesn't suits you, you can choose to have the maintenance on Tuesday, May 28. In this case, send a mail to firstname.lastname@example.org
We will apply a critical security update from Microsoft. This security update fixes a critical Remote Code Execution vulnerability in the Remote Desktop Service.