---
title: "Upgrade VAST COSI Driver"
slug: "upgrade-vast-cosi-driver-2-7"
updated: 2026-10-28T02:14:43Z
published: 2026-10-28T02:14:43Z
canonical: "docs.vastdata.com/upgrade-vast-cosi-driver-2-7"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vastdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Upgrade VAST COSI Driver

## Steps to Upgrade VAST COSI Driver

To upgrade to 2.7.x:

1. Rename or recreate any bucket classes with names that are longer than 27 characters. Ensure that the bucket names specified in bucket claims are within 63 characters.
2. Follow the [procedure](/develop/docs/upgrade-vast-cosi-driver-2-7#upgrade-helmbased-deployment-of-vast-block-csi-driver) for upgrading a Helm-based deployment.

## Upgrade Helm-Based Deployment of VAST COSI Driver

Complete these steps to upgrade VAST COSI Driver:

1. Refresh Helm repository information to see which VAST COSI Driver versions are available for deployment:

```
 helm repo update
```
2. Update the VAST COSI Driver's Helm chart configuration file (`values.yaml`) to specify the target release of VAST COSI Driver:

```
 image:
   csiVastPlugin:
     repository: <repo>
     tag: <new release>
     imagePullPolicy: IfNotPresent
```

For example:

```
 image:
   csiVastPlugin:
     repository: vastdataorg/csi
     tag: v2.7.0
     imagePullPolicy: IfNotPresent
```
  - `&lt;repo&gt;` is the name of the VAST COSI Driver Helm repository.
  - `&lt;new release&gt;` is the VAST COSI Driver release to be upgraded to.
3. Run Helm upgrade:

```
 helm upgrade <old release> <repo>/vastcosi -f <filename>.yaml
```

Where:
  - `&lt;old release&gt;` is the VAST COSI Driver release to be upgraded from.
  - `&lt;repo&gt;` is the name of the VAST COSI Driver Helm repository.
  - `vastcosi` is the name of the VAST COSI Driver Helm chart.
  - `&lt;filename&gt;.yaml` is the Helm chart configuration file.
4. Verify the status of the new VAST COSI Driver chart release:

```
 helm ls
```