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AWS systems-manager documentation change

Service: systems-manager · 2026-07-04 · Documentation low

File: systems-manager/latest/userguide/session-manager-prerequisites.md

Summary

Removed requirement for advanced-instances tier and simplified OS support description

Security assessment

Change removes references to advanced-instances tier without indicating security vulnerability remediation. No security-related content added or modified.

Diff

diff --git a/systems-manager/latest/userguide/session-manager-prerequisites.md b/systems-manager/latest/userguide/session-manager-prerequisites.md
index f946598d9..2bcf8acaf 100644
--- a//systems-manager/latest/userguide/session-manager-prerequisites.md
+++ b//systems-manager/latest/userguide/session-manager-prerequisites.md
@@ -13,5 +13 @@ Session Manager prerequisites Requirement | Description
-Supported operating systems |  Session Manager supports connecting to Amazon Elastic Compute Cloud (Amazon EC2) instances, in addition to non-EC2 machines in your [hybrid and multicloud](./operating-systems-and-machine-types.html#supported-machine-types) environment that use the _advanced-instances_ tier. Session Manager supports the following operating system versions:
-
-###### Note
-
-Session Manager supports EC2 instances, edge devices, and on-premises servers and virtual machines (VMs) in your [hybrid and multicloud](./operating-systems-and-machine-types.html#supported-machine-types) environment that use the _advanced-instances_ tier. For more information about advanced instances, see [Configuring instance tiers](./fleet-manager-configure-instance-tiers.html). **Linux and**macOS**** Session Manager supports all the versions of Linux and macOS that are supported by AWS Systems Manager. For information, see [Supported operating systems and machine types](./operating-systems-and-machine-types.html). **Windows** Session Manager supports Windows Server 2012 and later versions.
+Supported operating systems |  Session Manager supports connecting to Amazon Elastic Compute Cloud (Amazon EC2) instances, in addition to non-EC2 machines in your [hybrid and multicloud](./operating-systems-and-machine-types.html#supported-machine-types) environment. Session Manager supports the following operating system versions: **Linux and**macOS**** Session Manager supports all the versions of Linux and macOS that are supported by AWS Systems Manager. For information, see [Supported operating systems and machine types](./operating-systems-and-machine-types.html). **Windows** Session Manager supports Windows Server 2012 and later versions.
@@ -48 +43,0 @@ An updated version of SSM Agent is released whenever new tools are added to Syst
-Turn on advanced-instances tier ([hybrid and multicloud](./operating-systems-and-machine-types.html#supported-machine-types) environments) |  To connect to non-EC2 machines using Session Manager, you must turn on the advanced-instances tier in the AWS account and AWS Region where you create hybrid activations to register non-EC2 machines as managed nodes. There is a charge to use the advanced-instances tier. For more information about the advanced-instance tier, see [Configuring instance tiers](./fleet-manager-configure-instance-tiers.html).