istio

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apiVersion: release-notes/v2
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kind: feature
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area: traffic-management
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releaseNotes:
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  - |
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    **Deprecated** the use of the `.global` stub domain for multi-primary
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    (formerly "replicated control planes") multicluster configurations. The new
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    onboarding flow uses a simpler configuration which allows services across
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    the mesh to be accessed via `*.cluster.local`. There were several
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    limitations with `.global`, such as poor load balancing when using
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    gateways, which are no longer an issue with the new configuration.
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upgradeNotes:
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  - title: Multicluster `.global` Stub Domain Deprecation
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    content: |
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      As part of this release, Istio has switched to a new configuration for
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      multi-primary (formerly "replicated control planes"). The new
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      configuration is simpler, has fewer limitations, and has been thoroughly
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      tested in a variety of environments. As a result, the `.global` stub
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      domain is now deprecated and no longer guaranteed to work going forward.
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