Update management center, the next iteration of Azure Automation Update Management solution, is now in public preview. It provides an out-of-the-box, easy-to-use experience for central management and governance of OS updates across all the machines, including:
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Machines with Windows and Linux Operating systems.
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Machines deployed on Azure, and on-premises or on other cloud platforms via Azure Arc.

You get the following key upgrades over Azure Automation update management solution:
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No pre-requisites, zero onboarding steps.
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Granular access control on each machine using Azure roles and identity.
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Install updates right away or schedule them for a later date.
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Flexibility to define scheduling windows including syncing patch cycles with patch Tuesdays (unofficial term for Microsoft’s scheduled security fix release on every second Tuesday).
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New ways of patching such as automatic VM guest patching in Azure, hotpatch, or custom maintenance schedules
Learn more: