This article is contributed. See the original author and article here.

What is the  Issue? 

To improve security, we are making potentially breaking changes to the  unsupported versions from 5.7 to 6.3.63.* of Azure Service Fabric Runtime to all Azure Regions on Jan 19, 2021.

 

As a result, we have reached out to impacted customers to upgrade Service Fabric clusters by Jan 19,2021 to avoid service disruptions. We observed some customers have  not taken action to avoid outage to clusters and hence request you all treat this a final reminder to take the recommended action to upgrade to the latest supported and compliant version applicable to your scenario.

We also posted an Upgrade alert on the Service Fabric supported versions page.

 

Impact

Service Fabric clusters will not come up if you have not upgraded to one of below supported versions.

Impacted Service Fabric workloads

Azure Service Fabric clusters which run on unsupported versions from 5.7 to 6.3.63.* are impacted by this breaking change.  

 

Required Action

Upgrade Service Fabric clusters as soon as possible to one of the below supported versions of Service Fabric runtime that includes the fix for the security issue. We have also reached out to the impacted customers with guidance.

 

A fix to address the security issue will be deployed across Azure fleet by Jan 19,2021. We have released fix for the issue in all Service Fabric  supported versions and is made available in all regions.

Service Fabric runtime version including Break fix

Ensure that Azure Service Fabric cluster is an upgraded to one of the below supported version of Service Fabric runtime that includes fix for the security issue described above.

 

OS	Current Service Fabric runtime in the cluster	CU/Patch release
Windows	7.0.*	7.0.478.9590
Windows	7.1.*	7.1.503.9590
Windows	7.2.*	7.2.445.9590
Ubuntu 16	7.0.*	7.0.472.1
Ubuntu 16	7.1.*	7.1.455.1
Ubuntu 1804	7.1.*	7.1.455.1804
Ubuntu 16	7.2.*	7.2.447.1
Ubuntu 1804	7.2.*	7.2.447.1804

 

If you have any questions or concerns, please contact us by opening a support request. In addition, here are your general support options for Service Fabric: Learn about Azure Service Fabric Support options – Azure Service Fabric | Microsoft Docs. 

Brought to you by Dr. Ware, Microsoft Office 365 Silver Partner, Charleston SC.