updating pre-reqs

Author: Ryan Willis

articles/azure-arc/servers/prerequisites.md

@@ -1,7 +1,7 @@
 ---
 title: Connected Machine agent prerequisites
 description: Learn about the prerequisites for installing the Connected Machine agent for Azure Arc-enabled servers.
-ms.date: 07/11/2023
+ms.date: 09/26/2023
 ms.topic: conceptual
 ms.custom: devx-track-azurepowershell
 ---
@@ -35,21 +35,23 @@ If two agents use the same configuration, you will encounter inconsistent behavi
 
 Azure Arc supports the following Windows and Linux operating systems. Only x86-64 (64-bit) architectures are supported. The Azure Connected Machine agent does not run on x86 (32-bit) or ARM-based architectures.
 
-* Windows Server 2008 R2 SP1, 2012, 2012 R2, 2016, 2019, and 2022
-  * Both Desktop and Server Core experiences are supported
-  * Azure Editions are supported on Azure Stack HCI
-* Windows 10, 11 (see [client operating system guidance](#client-operating-system-guidance))
-* Windows IoT Enterprise
-* Azure Stack HCI
+* Amazon Linux 2 and 2023
 * Azure Linux (CBL-Mariner) 1.0, 2.0
-* Ubuntu 16.04, 18.04, 20.04, and 22.04 LTS
-* Debian 10, 11, and 12
+* Azure Stack HCI
 * CentOS Linux 7 and 8
+* Debian 10, 11, and 12
+* Oracle Linux 7 and 8
+* Red Hat Enterprise Linux (RHEL) 7, 8 and 9
 * Rocky Linux 8
 * SUSE Linux Enterprise Server (SLES) 12 SP3-SP5 and 15
-* Red Hat Enterprise Linux (RHEL) 7, 8 and 9
-* Amazon Linux 2 and 2023
-* Oracle Linux 7 and 8
+* Ubuntu 16.04, 18.04, 20.04, and 22.04 LTS
+* Windows 10, 11 (see [client operating system guidance](#client-operating-system-guidance))
+* Windows IoT Enterprise
+* Windows Server 2008 R2 SP1, 2012, 2012 R2, 2016, 2019, and 2022
+  * Both Desktop and Server Core experiences are supported
+  * Azure Editions are supported on Azure Stack HCI
+
+The Azure Connected Machine agent can't currently be installed on systems hardened by the Center for Information Security (CIS) Benchmark.
 
 ### Client operating system guidance
 
@@ -71,15 +73,14 @@ Microsoft doesn't recommend running Azure Arc on short-lived (ephemeral) servers
 
 Windows operating systems:
 
-* NET Framework 4.6 or later. [Download the .NET Framework](/dotnet/framework/install/guide-for-developers).
-* Windows PowerShell 4.0 or later (already included with Windows Server 2012 R2 and later). For Windows Server 2008 R2 SP1, [Download Windows Management Framework 5.1.](https://www.microsoft.com/download/details.aspx?id=54616).
+* Windows Server 2008 R2 SP1 requires PowerShell 4.0 or later. Microsoft recommends running the latest version, [Windows Management Framework 5.1](https://www.microsoft.com/download/details.aspx?id=54616).
 
 Linux operating systems:
 
 * systemd
 * wget (to download the installation script)
 * openssl
-* gnupg
+* gnupg (Debian-based systems, only)
 
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