Each week, the CMS 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 8/7/2025
- 8/9/2025 - Splunk GovCloud Quarterly Maintenance
- 8/9/2025 - Cloud Splunk Cluster Manager OS Patching
- 8/9/2025 - Upgrade Enterprise (OIT) Jira to version 10.3.9 in PROD
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 - 2025
8/15/2025 - Splunk Prod - Increase Indexer Instances for OE13
Summary:
The CMS Hybrid Cloud team will scale up Splunk indexers infrastructure as part of Open Enrollment (OE) readiness based on this years game day exercise.
Actions we are taking:
- Upscaling Splunk indexers using IAC.
- Splunk and ITSI will be placed in maintenance mode.
When is this happening?
Start Time: Friday, 8/15/2025 at 9:00 pm ET
End Time: Monday, 8/18/2025 at 6:00 am ET
Who will be impacted?
DRaaS ITSI, MITG MSI and EMM may have performance impacts when the Cloud Splunk indexers are being configured. Also, CCIC search heads peered to the Splunk environment might be impacted. CCIC search heads, DRaaS ITSI search heads, MITG MSI ITSI search heads need to be configured with the new IPs.
What is the impact?
There will be latency in adhoc searches that are performed by customers. Dashboards might also render slowly and have incomplete data while the changes are being propagated.
8/16/2025 - Lambda runtime upgrade version to 22.x on all AWS accounts
Summary:
CMS Hybrid Cloud team is upgrading Lambda function from 18.x to 22.x in order to maintain relentless AWS support for the CMS Hybrid Cloud Logging Lambda runtime. The current logging Lambda version runtimes will be deprecated by AWS by end of September 2025.
Actions we are taking:
We will be upgrading the logging Lambda function from current version 18.x to 22.x.
When is this happening?
Start Time: Saturday, 08/16/2025 at 08:00 a.m. ET
End Time: Saturday, 08/16/2025 at 09:00 p.m. ET
Who will be impacted?
All AWS accounts.
What is the impact?
All AWS accounts may experience an outage of logging services for a few minutes while the Lambda runtime is upgraded .
8/20/2025 - Non- Marketplace SSM patching - DEV/TEST/IMPL
Summary:
As part of our normal patching, the CMS Hybrid Cloud team will apply the latest Windows and Linux patches on Wednesday, 8/20/2025 at 5:00 p.m. ET. The week's patches will impact the DEV/TEST environment for the affected Non-Marketplace applications noted below.
Actions we are taking:
- Non-Marketplace DEV/TEST/IMPL
- SSM Linux & Windows Vulnerability Patching
When is this happening?
Start Time: Wednesday, 08/20/2025 at 5:00 p.m. ET
End Time: Wednesday, 08/20/2025 at 11:00 p.m ET
Who will be impacted?
CEDAR, Million Hearts, FFSDCS, RASS, OC Base- eLDAP, SC CLIA, NTP LMS, Spott MACBIS, MDP, OC Base- WNMG, NEIL/HRES, OC Base- EWST, MacFin, eAPD Hi-C, OC Base- CMS Cloud Legacy, OC Base- DevSecOps SecDevOps, iServ, MDP, PECOS2.0, SEI, OC Base- PWSS, TRA, CMS ARTS, MCIM, RAD Analysis Tools, MCIM, Perm, CMS Cloud - CRE, CMS Cloud - Enterprise Agile Tools, CMS Cloud tamer, CMS Cloud - CARD, CMS Cloud - ECS Fargate, CMS Cloud - Direct Connect, CMS Cloud - Jfrog SonarCube, CMS Cloud - DNS Prod, CMS Cloud - SRE, CMS Cloud - Governance 2.0, MEOWx, CMS Cloud - CloudBees Jenkins, CMS Cloud - CET, CMS Cloud - DevSecOps, CMS Cloud - Utilities, CMS Cloud - Testrail, CMS Cloud - CircleCI, CMS Cloud - Sam GSS Security GovCloud, SWIFT, AWS HEIDI, MDX
No reboot - MEPBS, EACMS, MacPro, PS&R, RDS, OC Base- APIM GEO, 1115 PMDA, CMS Cloud - Governance 2.0, CMS Cloud - QuickDNS, CMS Cloud - CMSNet, CMS Cloud - CCG Web Content, CMS Cloud - Network Arch, CMS Cloud - VPC Automation, CMS Cloud - Security Team, CMS Cloud - CCG Web Content, CMS Cloud Temporal, CMS Cloud - Splunk, CMS Cloud - CET, AWS GSS Security GC, CMS Cloud - Splunk GovCloud Dev, occonfluence, ocjira, miniorange, ocsonarqube, MTF-PM, NDW, MacFin, MTF-DM
What is the impact?
Patches will be transmitted to the affected areas. For some customers, reboots may occur depending upon the tags applied.
8/20/2025 - Marketplace SSM patching - DEV/TEST
Summary:
As part of our normal patching, the CMS Hybrid Cloud team will apply the latest Windows and Linux patches on Wednesday, 08/20/2025 at 5:00 p.m. ET. The week's patches will impact the DEV/TEST environment for the affected Marketplace applications noted below.
Actions we are taking:
- Marketplace DEV/TEST
- SSM Linux & Windows Vulnerability Patching
When is this happening?
Start Time: Wednesday, 8/20/2025 at 5:00 p.m. ET
End Time: Wednesday, 8/20/2025 at 11:00 p.m. ET
Who will be impacted?
FFM_Opera, FFM_QAO XES - CyberArk, OCEAN, VAMS, TWS, XES - XOC Tools, SERVIS, FFM_Shared_Services, FFM MLMS, XES - MSI Tech Lab, FFM_FM, FFM_TWS, FFM_PM, XES - Service Virtualization
DSRS, FFM, FFM DSH, FFM EDI, FFM EFT, FFM ESDCU, MCR, FLH, OC Base- FLH, OC Base PET, FFM_MNPS
What is the impact?
Patches will be transmitted to the affected areas. For some customers, reboots may occur depending upon the tags applied.
8/20/2025 - Splunk Universal Forwarder Agent upgrade to 9.4.2
Summary:
Splunk Universal Forwarder (UF) agents installed and patched via SSM will be updated to version 9.4.2. This will not require a reboot or any action by customers.
Actions we are taking:
- Non-Marketplace DEV/TEST/IMPL
- Marketplace DEV/TEST
- Splunk Universal Forwarder (UF) Agents patched via SSM and updated to version 9.4.2
When is this happening?
Start Time: Wednesday, 08/20/2025 at 4:00 p.m. ET
End Time: Wednesday, 08/20/2025 at 5:00 p.m. ET
Who will be impacted?
All customers with Splunk UF installed and managed by CMS OIT Hybrid Cloud team in the environments noted above will have their agents updated via SSM. All other environments will be updated in the next change cycle.
CEDAR, Million Hearts, FFSDCS, RASS, OC Base- eLDAP, SC CLIA, NTP LMS, Spott MACBIS, MDP, OC Base- WNMG, NEIL/HRES, OC Base- EWST, MacFin, eAPD Hi-C, OC Base- CMS Cloud Legacy, OC Base- DevSecOps SecDevOps, iServ, MDP, PECOS2.0, SEI, OC Base- PWSS, TRA, CMS ARTS, MCIM, RAD Analysis Tools, MCIM, Perm, CMS Cloud - CRE, CMS Cloud - Enterprise Agile Tools, CMS Cloud tamer, CMS Cloud - CARD, CMS Cloud - ECS Fargate, CMS Cloud - Direct Connect, CMS Cloud - Jfrog SonarCube, CMS Cloud - DNS Prod, CMS Cloud - SRE, CMS Cloud - Governance 2.0, MEOWx, CMS Cloud - CloudBees Jenkins, CMS Cloud - CET, CMS Cloud - DevSecOps, CMS Cloud - Utilities, CMS Cloud - Testrail, CMS Cloud - CircleCI, CMS Cloud - Sam GSS Security GovCloud, SWIFT, AWS HEIDI, MDX
No reboot - MEPBS, EACMS, MacPro, PS&R, RDS, OC Base- APIM GEO, 1115 PMDA, CMS Cloud - Governance 2.0, CMS Cloud - QuickDNS, CMS Cloud - CMSNet, CMS Cloud - CCG Web Content, CMS Cloud - Network Arch, CMS Cloud - VPC Automation, CMS Cloud - Security Team, CMS Cloud - CCG Web Content, CMS Cloud Temporal, CMS Cloud - Splunk, CMS Cloud - CET, AWS GSS Security GC, CMS Cloud - Splunk GovCloud Dev, occonfluence, ocjira, miniorange, ocsonarqube, MTF-PM, NDW, MacFin, MTF-DM
FFM_Opera, FFM_QAO XES - CyberArk, OCEAN, VAMS, TWS, XES - XOC Tools, SERVIS, FFM_Shared_Services, FFM MLMS, XES - MSI Tech Lab, FFM_FM, FFM_TWS, FFM_PM, XES - Service Virtualization
DSRS, FFM, FFM DSH, FFM EDI, FFM EFT, FFM ESDCU, MCR, FLH, OC Base- FLH, OC Base PET, FFM_MNPS
What is the impact?
There will be no impact to customers.
8/20/2025 - Azure Update Manager patching - DEV/TEST/IMPL
Summary:
As part of our normal patching, the CMS Hybrid Cloud team will apply the latest Windows and Linux patches on Wednesday, 08/20/2025 at 5:00 p.m. ET. The week's patches will impact the DEV/TEST/IMPL environment for the affected MAG applications noted below.
Actions we are taking:
- MAG DEV/TEST/IMPL
- MAG Linux & Windows Vulnerability Patching
When is this happening?
Start Time: Wednesday, 08/20/2025 at 5:00 p.m. ET
End Time: Wednesday, 08/20/2025 at 11:00 p.m. ET
Who will be impacted?
RG-SS-LDAP-PROXY-DEV
RG-SS-LDAP-PROXY-VAL
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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