---
layout: docs
page_title: Upgrade Agent or Proxy
description: >-
  Upgrade Vault Agent or Vault Proxy
---

> [!IMPORTANT]  
> **Documentation Update:** Product documentation, which were located in this repository under `/website`, are now located in [`hashicorp/web-unified-docs`](https://github.com/hashicorp/web-unified-docs), colocated with all other product documentation. Contributions to this content should be done in the `web-unified-docs` repo, and not this one. Changes made to `/website` content in this repo will not be reflected on the developer.hashicorp.com website.

# Upgrade Agent or Proxy

The Vault Agent is an API client of the Vault Server. Vault APIs are almost
always backwards compatible. When they are not, this is called out in the
upgrade guide for the new Vault version, and there is a lengthy deprecation
period. The Vault Agent version can lag behind the Vault Server version, though
we recommend keeping all Vault instances up to date with the most recent minor Vault version
to the extent possible.