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Each week, the CMS Hybrid Cloud program provides a list of upcoming changes, maintenance windows, and updates to help customers build awareness and plan effectively and summarizes changes from the previous week.
This newsletter includes:
Completed change summary for the week of 7/30/2026
To learn details about previous changes please go to the News and Updates section on cloud.cms.gov. (Secure Access required)
For Patching and Gold Image release schedule please view: Patching and Gold Image Release Calendar - 2026
AWS Patch Tag Naming Update
*Update on patch tag naming after new finding. No space or _ to be used.
Beginning July, AWS team will convert patch tags naming from
· Patch Group to PatchGroup
· Patch Window to PatchWindow
The tag name change in AWS will "Allow tags in metadata" setting to be enabled on instances, to align with the system requirement and avoid metadata-related issues. The updated tag format will be used going forward.
The patching team will create the ITC changes starting July 20, 2026, according to the following schedule:
· Lower Environments: July 20-21, 2026 (Completed)
· Production: July 29, 2026 (Completed)
· Marketplace Production: August 9, 2026
As this is a behavioral change in the patching process, Technical Advisors are requested to coordinate with their respective ADOs and hosting coordinators to ensure the new tag format is updated and adopted in all future deployments. This change is specific to AWS patches only.
Please contact Enterprise Patching Team for questions / concerns.
8/7/2026 - Splunk GovCloud Upgrade
Summary:
CMS Enterprise Splunk team will upgrade our current Splunk version from 10.2.4 to 10.2.5 to remediate vulnerabilities.
Actions we are taking:
- Splunk GovCloud Upgrade from 10.2.4 to 10.2.5
When is this happening?
Start Time: Friday, 8/7/2026 at 5:00 p.m. ET
End Time: Sunday, 8/9/2026 at 11:00 p.m. ET
Who will be impacted?
CCIC search heads peered to the Splunk environment.
What is the impact?
There will be limited impact on dashboards during cutover. We have a blue/green deployment where we have similar cluster in each deployment. This configuration makes the cluster available until cutover and once cutover is done, the new deployment will be available. Currently we are on green deployment and the new one will be blue deployment.
8/9/2026 - Marketplace SSM Patching - Prod
Summary:
As part of our normal patching, the CMS Hybrid Cloud team will apply the latest Windows and Linux patches on Sunday, 8/9/2026 at 12:00 a.m. ET. The week's patches will impact the PROD environment for the affected Marketplace applications noted below.
Actions we are taking:
- Marketplace PROD
- SSM Linux & Windows Vulnerability Patching
When is this happening?
Start Time: Sunday, 8/9/2026 at 12:00 a.m. ET
End Time: Sunday, 8/9/2026 at 4:00 a.m. ET
Who will be impacted?
FFM_Opera, VAMS, TWS, XES - XOC Tools, SERVIS, FFM_Shared_Services, FFM MLMS, XES - MSI Tech Lab, FFM_FM, FFM_TWS, XES - Service Virtualization
DSRS, FFM, FFM DSH, FFM EDI, FFM EFT, FFM ESDCU, MCR, FLH, OC Base- FLH, OC Base PET, FFM_MNPS, CMS Cloud - Advanced Monitoring
What is the impact?
Patches will be transmitted to the affected areas. For some customers, reboots may occur depending upon the tags applied.
Need help? We are here to support you.
If you have any questions, don't hesitate to reach out to your assigned Hosting Coordinator. CMS IT Support can be reached via cloudsupport@cms.hhs.gov, or call (800) 562-1963, and is documented here at Support Page on cloud.cms.gov.
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