Update automanage-arc.md

Author: MutemwaRMasheke

articles/automanage/automanage-arc.md

@@ -9,6 +9,9 @@ ms.date: 05/12/2022
 
 # Azure Automanage for Machines Best Practices - Azure Arc-enabled servers
 
+> [!CAUTION]
+> On 31 August 2024, both Automation Update Management and the Log Analytics agent it uses will be retired. Migrate to Azure Update Manager before that. Refer to guidance on migrating to Azure Update Manager [here](https://learn.microsoft.com/azure/update-manager/guidance-migration-automation-update-management-azure-update-manager?WT.mc_id=Portal-Microsoft_Azure_Automation). [Migrate Now](https://ms.portal.azure.com/).
+
 > [!CAUTION]
 > This article references CentOS, a Linux distribution that is End Of Life (EOL) status. Please consider your use and planning accordingly. For more information, see the [CentOS End Of Life guidance](~/articles/virtual-machines/workloads/centos/centos-end-of-life.md).