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---
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layout: docs
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page_title: 0.4.x
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description: >-
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Consul API Gateway release notes for version 0.4.x
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---
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# Consul API Gateway 0.4.0
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## Release Highlights
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- **Support for Kubernetes Gateway API Version 0.5.0 and v1beta1 APIs:**
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The `v0.5.0` release of the Kubernetes Gateway API is significant because it
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marks the growth in maturity to a beta API version (v1beta1) release for some
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of the key APIs:
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- GatewayClass
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- Gateway
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- HTTPRoute
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The other APIs (e.g. TCPRoute) are still at the `v1alpha2` stage.
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Reaching `v1beta1` status has several benefits for users, including greater
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stability and backward compatibility requirements. Existing fields and allowed
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options can not be removed or renamed except in a new, major version of the
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API. Once an API reaches `v1beta1` status, future versions must comply with
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several backward compatibility requirements.
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- **URL Path Prefix Rewrite** This release introduces support for rewriting a
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URL's path prefix when routing HTTP traffic. To use this functionality, add a
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`URLRewrite` filter to an `HTTPRoute` configuration. This enables the gateway
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to rewrite the URL path in a client's HTTP request before sending the request
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to a service. For example, you could configure the gateway to change the path
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from `//store/checkout` to `//cart/checkout`. Refer to the [usage
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documentation](/consul/docs/connect/gateways/api-gateway/define-routes/reroute-http-requests) for additional information.
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2022-08-16 17:48:13 +00:00
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## What has Changed
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- **Reference Policy Renamed to Reference Grant** In v0.5.0 of the Kubernetes
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Gateway API, `ReferencePolicy` has been renamed to `ReferenceGrant`. This
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release supports both but `ReferencePolicy` is deprecated and will be removed
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in a future version of the standard.
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After upgrading to this version of Consul API Gateway, you should rename all
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existing `ReferencePolicy` to `ReferenceGrant`. Refer to the [Upgrades](/consul/docs/connect/gateways/api-gateway/upgrades-k8s)
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instructions for additional details.
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## Supported Software
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- Consul 1.11.2+
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- HashiCorp Consul Helm chart 0.47.1+
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- Kubernetes 1.21+
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- Kubernetes 1.24 is not supported at this time.
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- Kubectl 1.21+
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- Envoy proxy support is determined by the Consul version deployed. Refer to
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[Envoy Integration](/consul/docs/connect/proxies/envoy) for details.
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## Kubernetes Gateway API Specification
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Supported version of the [Gateway API](https://gateway-api.sigs.k8s.io/) spec: v0.5.0
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## Upgrading
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For detailed information on upgrading, please refer to the [Upgrades page](/consul/docs/connect/gateways/api-gateway/upgrades-k8s)
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## Known Issues
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The following issues are know to exist in the v0.4.0 release
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- API Gateway pods fail to start if namespace mirroring enabled and destination
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namespace doesn't exist. See GitHub Issue
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[#248](https://github.com/hashicorp/consul-api-gateway/issues/248) for
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details.
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## Changelogs
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The changelogs for this major release version and any maintenance versions are listed below.
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~> **Note:** The following link will take you to the changelogs on the GitHub website.
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- [0.4.0](https://github.com/hashicorp/consul-api-gateway/releases/tag/v0.4.0)
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