As announced few weeks ago at the Ignite 2019 Conference, Microsoft has been working to bring Azure capabilities back to on-premises (see https://t.co/Ih1SutrNVM).
Well, just in case you are already evaluating this new capability with the onboarding process of on-premises servers and if you are using SCCM and/or WSUS to manage your servers updates deployment, you will need to update your configuration to include the Azure Connected Machine Agent (ACMA)
There has been already one update for the Azure Connected Machine Agent but no support KB article has been yet published.