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• The themes for Istio in 2023 are accelerating the time to value for the service mesh, making the transition to mtls easier, reducing the total cost of ownership, and continuing to be predictable and stable.
• The focus areas for Istio in 2023 include getting the ambient mesh to production, participating in the Gateway API and Gamma API initiatives, promoting alpha and beta features and APIs, and integrating natively with other Cloud native projects.
• The presentation explains the shift from sidecar proxies to the ambient architecture and how it makes Istio more flexible and scalable.
• The future of Istio may involve a combination of sidecar proxies and the ambient architecture, depending on the use case and requirements.