> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-feature-react-native-sdk-quotedmessage-a.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Upgrading From V3

## Upgrading From v3

Upgrading from v3.x to v4 is fairly simple. Below are the major changes that are released as a part of CometChat v4:

Please follow the [setup](/sdk/javascript/setup-sdk) instructions to upgrade to latest version of V4 before proceeding further

## Dependency Change

## Chat SDK

<Tabs>
  <Tab title="JavaScript">
    ```bash theme={null}
    npm i @cometchat/chat-sdk-javascript
    ```
  </Tab>
</Tabs>

## Calls SDK

<Tabs>
  <Tab title="JavaScript">
    ```bash theme={null}
    npm i @cometchat/calls-sdk-javascript
    ```
  </Tab>
</Tabs>

## Change The Import Statements

Change the import statements all around the project.

## Chat SDK

<Tabs>
  <Tab title="JavaScript">
    ```js theme={null}
    import {CometChat} from '@cometchat/chat-sdk-javascript';
    ```
  </Tab>
</Tabs>

## Calls SDK

<Tabs>
  <Tab title="JavaScript">
    ```js theme={null}
    import {CometChatCalls} from '@cometchat/calls-sdk-javascript';
    ```
  </Tab>
</Tabs>