After the Configuration Manager 2409 site upgrade, the administrators must ensure the clients are updated to the latest version. That’s because the new features are applicable only when the client agents are up-to-date.
The ConfigMgr 2409 client version is 5.00.9132.1011, and you can gather all computers that are running older versions with the query provided in this article. Once you have the devices grouped in the collection, the administrator can now check why the clients agents weren’t upgraded.
In Configuration Manager, upgrading the clients to the latest version can be either done manually or you can use the automatic client upgrade feature located under the site hierarchy settings.
WQL Query for Clients not upgraded to 2409
You can use the query below to find clients that have not been updated to the latest version of the 2409 version. Make sure the client version that you’ve entered in the below query is correct.
select SMS_R_SYSTEM.ResourceID,SMS_R_SYSTEM.ResourceType,SMS_R_SYSTEM.Name,SMS_R_SYSTEM.SMSUniqueIdentifier,SMS_R_SYSTEM.ResourceDomainORWorkgroup,SMS_R_SYSTEM.Client from SMS_R_System where SMS_R_System.ClientVersion != '5.00.9132.1011'
WQL Query for Clients for SCCM 2409 clients
You can use the below WQL query to create a device collection that for clients that are at the latest version after upgrading to version 2409.
select SMS_R_SYSTEM.ResourceID,SMS_R_SYSTEM.ResourceType,SMS_R_SYSTEM.Name,SMS_R_SYSTEM.SMSUniqueIdentifier,SMS_R_SYSTEM.ResourceDomainORWorkgroup,SMS_R_SYSTEM.Client from SMS_R_System where SMS_R_System.ClientVersion = '5.00.9132.1011'
Create a Device Collection for SCCM 2409
Launch the Configuration Manager console. Go to Assets and Compliance and select Device Collections. Right-click the “Device Collections” node and select the option “Create Device Collection“.

Specify the device collection name, choose the limiting collection and click Next. On the Membership Rules window, click Add Rule and from the drop-down, select Query Rule. In the Query Rule Properties box, enter the query name and click Edit Query Statement. Select the Criteria tab. Click Show query language and enter the SCCM 2409 WQL query.

Click OK twice. Complete the remaining steps and then close the Create Collection Wizard.
After completing the above steps, wait for a few minutes while the collection is updated. The collection should now group all the Windows computers that are not running the latest agent version.
To view the computers that are running the older version of SCCM agent, right-click the SCCM 2409 device collection and select Show members. The console now lists those devices.
What’s the next step? Once you find out the devices that are not running the latest client version, ensure they are online and manually install the ConfigMgr client on the collection. If you have enabled the automatic client upgrade, the agents should be updated when the devices are online.