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Backport of docs: Update Consul K8s Release Notes to mention updates to Cluster Peering into release/1.14.x (#15582) 

Co-authored-by: David Yu <dyu@hashicorp.com>
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hc-github-team-consul-core 2022-11-28 16:29:27 -05:00 committed by GitHub
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website/content/docs/release-notes/consul-k8s/v1_0_x.mdx
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## Release Highlights
- ** Simplified Service Mesh Deployments with Consul Dataplane:** Consul client agents are no longer deployed by default, and Consul service mesh no longer uses Consul clients to operate. A new component `consul-dataplane` is now injected as a sidecar-proxy instead of plain Envoy. `consul-dataplane` manages the Envoy proxy process and proxies xDS requests from Envoy to Consul servers. All service mesh consul-k8s components are configured to talk directly to Consul servers.
- **Simplified Service Mesh Deployments with Consul Dataplane:** Consul client agents are no longer deployed by default, and Consul service mesh no longer uses Consul clients to operate. A new component `consul-dataplane` is now injected as a sidecar-proxy instead of plain Envoy. `consul-dataplane` manages the Envoy proxy process and proxies xDS requests from Envoy to Consul servers. All service mesh consul-k8s components are configured to talk directly to Consul servers.
- **Cluster Peering GA with Peering over Mesh Gateways:** This version promotes Cluster Peering, a new model to federate Consul clusters for both service mesh and traditional service discovery, to General Availability. Cluster peering allows for service interconnectivity with looser coupling than the existing WAN federation. Cluster Peering on Consul K8s now enables [Cluster Peering with Control Plane traffic routed via Mesh Gateways](/docs/connect/gateways/mesh-gateway/peering-via-mesh-gateways) by default instead of provisioning load balancers using the `servers.exposeServers` stanza. In addtion, failover for service to service traffic over Cluster Peering can be configured through the `failover.targets` field in the [ServiceResolver](https://developer.hashicorp.com/consul/docs/connect/config-entries/service-resolver#targets) CRD.
- **Consul API Gateway 0.5.0 Support:** Support to run Consul API Gateway without clients and allow Consul API Gateway to directly connect to Consul servers.

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website/content/docs/release-notes/consul/v1_14_x.mdx
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- **Cluster Peering Failover:** Cluster Peering now supports the ability to redirect to services running on cluster peers with service resolvers. More details for configuring failover across peers is provided in the Service Resolver [failover](/docs/connect/config-entries/service-resolver#failover) stanza.
- **Control Plane traffic over Mesh Gateways:** Cluster Peering now supports the establishing peering through Mesh Gateways. More detail on using Mesh Gateways for Cluster Peering are found in [Enabling Service-to-service traffic across Peered Clusters](/docs/connect/gateways/mesh-gateway/service-to-service-traffic-peers). Mesh Gateways are used by default for [Cluster Peering on Kubernetes](/docs/connect/cluster-peering/k8s).
- **Control Plane traffic over Mesh Gateways:** Cluster Peering now supports the establishing peering through Mesh Gateways. More detail on using Mesh Gateways for Cluster Peering are found in [Enabling Peering Control Plane Traffic](/docs/connect/gateways/mesh-gateway/peering-via-mesh-gateways). Mesh Gateways are used by default for [Cluster Peering on Kubernetes](/docs/connect/cluster-peering/k8s).
- **Simplified Service Mesh with Consul Dataplane:** Support for a new `consul-dataplane`, a lightweight process for managing Envoy proxies introduced in Consul v1.14.0. Consul Dataplane removes the need to run client agents on every node in a cluster for service discovery and service mesh. Instead, Consul deploys sidecar proxies that provide lower latency, support additional runtimes, and integrate with cloud infrastructure providers. Read more in [Simplified Service Mesh with Consul Dataplane](/docs/connect/dataplane).