open-consul/website/content/docs/release-notes/consul-api-gateway/v0_3_x.mdx

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---
layout: docs
page_title: 0.3.x
description: >-
Consul API Gateway release notes for version 0.3.x
---
# Consul API Gateway 0.3.0
## Release Highlights
- **Improved High Availability and Scalability via Multiple Instances per Gateway:**
This release introduces support for deploying multiple instances of a logical
gateway (i.e. a K8s `gateway` config object). You can use an external load
balancing service to distribute incoming traffic across the instances of a
gateway. This provides higher availability of gateway services and also allows
a single logical gateway to handle a volume of network traffic that is much
greater than what a single instance of a gateway can.
Administrators can set the number of instances independently for each logical
gateway. Administrators can also set, in the `gatewayClassConfig`, the
minimum, maximum and default number of gateway instances. These are applied
per `gateway` to all `gateways` in that `gatewayClass`. The minimum and
maximum settings will override settings configured on any given `gateway`.
Note: There is a hard limit of eight (8) instances per `gateway` and it can
not be overridden. This hard limit will probably be increased in the future.
- **Cross Namespace Reference Policies for Certificates:**
Reference policies is a security feature introduced in the 0.2 release. In
this release, Reference Policies are now required for TLS certificates when a
`listener` has a `certificateRef` that is in a different `namespace`.
## Supported Software
- Consul 1.11.2+
- HashiCorp Consul Helm chart 0.45.0+
- 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: `v1alpha2`(v0.4.1)
## Upgrading
For detailed information on upgrading, please refer to the [upgrade details page](/docs/api-gateway/upgrade-specific-versions)
## Changelogs
The changelogs for this major release version and any maintenance versions are listed below.
-> **Note**: These links will take you to the changelogs on the GitHub website.
- [0.3.0](https://github.com/hashicorp/consul-api-gateway/releases/tag/v0.3.0)