---
id: upgrade
title: Upgrade Litmus ChaosCenter to Latest Version
sidebar_label: Upgrade
---

---

## Upgrade ChaosCenter
To upgrade Litmus ChaosCenter from 2.0.0-Beta9 to 2.0.0, you can follow these steps:

1. Disconnect the agent components
   To disconnect agents, you can do it from the chaoscenter by clicking the `disconnect` button. With this, the subscriber deployment and agent-config will be removed from the agent cluster.
   
   <img src={require('../assets/disconnect-image.png').default} width="800" />

    
2. Upgrade the control plane (ChaosCenter)
    To upgrade ChaosCenter, you can re-apply the manifest using the kubectl.

    ```bash
    kubectl apply -f https://raw.githubusercontent.com/litmuschaos/litmus/2.0.0/docs/2.0.0/litmus-2.0.0.yaml
    ```
    
2.  Reinstall the agent components using litmusctl
    >Note: While reinstallation, make sure to use the same agent name 
    
    To reinstall the ChaosAgents, use [Litmusctl](../litmusctl/usage-non-interactive-mode.md)

## Upgrade Mongodb DB Schema
> Note: This step is not required for upgrading 2.0.0-Beta9 to 2.0.0

To upgrade the DB schema, make sure to delete the PV before re-installing ChaosCenter.

## Upgrade ChaosAgent
To upgrade your ChaosAgent, you can follow these steps:

1. If an upgrade is available, you will get an option to upgrade your agent in the ChaosCenter. Upon clicking on the upgrade option, a modal will pop up providing you the litmusctl command which you can execute and your ChaosAgent will be upgraded.

<img src={require('../assets/user-guides/upgrade/upgrade-agent.png').default} width="800" />


Alternatively you can run the following command using litmusctl in the cluster containing the agent by providing `<CLUSTER_ID>` and `<PROJECT_ID>`.

```
litmusctl upgrade agent --cluster-id="<CLUSTER_ID>" --project-id="<PROJECT_ID>"
```

> Note: v0.5.0 of [litmusctl](https://github.com/litmuschaos/litmusctl/blob/master/README.md) is required.