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Operator Nexus releases various functionality and bug fixes throughout the product lifecycle to update the Azure resources and on-premises extensions, critical in communications back to Azure.
Note
This article describes Cluster Management Bundle Upgrades (CMBU), which are non-disruptive and automatically applied by Microsoft. These upgrades are separate from Cluster Runtime Upgrades, which are customer-managed and disruptive. For more information, see Related content.
Scope
The releases update components on the Cluster to enable new functionality, while maintaining backwards compatibility for the customer. Additionally, new runtime releases are made available and accessed via Cluster Runtime Upgrades.
Delivery
CMBU is triggered independently when the release is available in the Azure region.
Impact to customer workloads
There's no disruption to running workloads or instantiating new workloads, and on-premises resources retain availability throughout the upgrade. Therefore, the customer sees no impact.
Duration of on-premises updates
Updates take up to one hour to complete per Cluster.
Related content
Azure Operator Nexus includes multiple upgrade types that serve different purposes.
Network Fabric Management upgrades (non-disruptive)
- Network Fabric Management upgrade overview - Non-disruptive updates to Fabric Azure resources and extensions
Runtime upgrades (customer-managed, disruptive)
- Cluster runtime upgrade overview - Disruptive updates to underlying platform software
- Cluster runtime upgrade
- Network Fabric runtime upgrade