An Azure service that is used to automate, configure, and install updates across hybrid environments.
@santosh llc Update Management internally uses runbooks to perform updates. You can't view these runbooks, and they don't require any configuration. When an update deployment is created, it creates a schedule that starts a master update runbook at the specified time for the included machines. The master runbook starts a child runbook on each agent that initiates the installation of the required updates with the Windows Update agent on Windows, or the applicable command on supported Linux distro.
Microsoft also offers other capabilities where you can manage azure virtual machines by using automatic VM guest patching feature. To know more, refer this document.