Managing patches across many virtual machines (VMs) in an Azure environment is critical for ensuring security and performance. In Azure, we now have a new product: Azure Update Manager. The service can help us keep our machines up-to-date. Implementing a patch schedule is an aspect of maintaining the security and stability of an IT environment. Critical and security patches are often applied to all machines as soon as possible. Updating test machines before production machines is an often-used practice for other patches.