---
layout: docs
page_title: 0.4.x
description: >-
  Consul API Gateway release notes for version 0.4.x
---

# Consul API Gateway 0.4.0

## Release Highlights

- **Support for Kubernetes Gateway API Version 0.5.0 and v1beta1 APIs:**
  The `v0.5.0` release of the Kubernetes Gateway API is significant because it
  marks the growth in maturity to a beta API version (v1beta1) release for some
  of the key APIs:
  - GatewayClass
  - Gateway
  - HTTPRoute

  The other APIs (e.g. TCPRoute) are still at the `v1alpha2` stage.

  Reaching `v1beta1` status has several benefits for users, including greater
  stability and backward compatibility requirements. Existing fields and allowed
  options can not be removed or renamed except in a new, major version of the
  API. Once an API reaches `v1beta1` status, future versions must comply with
  several backward compatibility requirements.

- **URL Path Prefix Rewrite**
  This release introduces support for rewriting a URL's path prefix when routing
  HTTP traffic. This is configured by adding a `URLRewrite` filter to a
  `HTTPRoute`. With this feature, the gateway can rewrite the URL path, in a
  client's HTTP Request, before sending the request to a service. A simple
  example of this is changing the path from `//store/checkout` to
  `//cart/checkout`. Please see the product documentation for details on how to
  configure this feature.

## What Has Changed

- **Reference Policy Renamed to Reference Grant** In v0.5.0 of the Kubernetes
  Gateway API, `ReferencePolicy` has been renamed to `ReferenceGrant`. This
  release supports both but `ReferencePolicy` is deprecated and will be removed
  in a future version of the standard.

  After upgrading to this version of Consul API Gateway, you should rename all
  existing `ReferencePolicy`y to `ReferenceGrant`s. Please see the upgrading
  instructions for additional details.

## Supported Software

- Consul 1.11.2+
- HashiCorp Consul Helm chart 0.47.0+
- Kubernetes 1.21+
  - Kubernetes 1.24 is not supported at this time.
- Kubectl 1.21+
- Envoy proxy support is determined by the Consul version deployed. Refer to
  [Envoy Integration](/docs/connect/proxies/envoy) for details.

## Kubernetes Gateway API Specification

Supported version of the [Gateway API](https://gateway-api.sigs.k8s.io/) spec: v0.5.0

## Upgrading

For detailed information on upgrading, please refer to the [Upgrades page](/docs/api-gateway/upgrades)

## Changelogs

The changelogs for this major release version and any maintenance versions are listed below.

~> **Note:** The following link will take you to the changelogs on the GitHub website.

- [0.4.0](https://github.com/hashicorp/consul-api-gateway/releases/tag/v0.4.0)
