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title: Einstein Bots API Release Notes
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locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/bot-api/einstein-bot/references/api-release-notes.md
canonical_url: https://developer.salesforce.com/docs/service/einstein-bot-api/references/about/api-release-notes.html
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  - Einstein Bots API and SDK
  - Enstein Bot API and SDK
---
# Einstein Bots API Release Notes

The API Release Notes include updates to the Einstein Bots REST API, SDK, and channel connector framework.

To see the latest feature updates, visit [Einstein Bots Release Notes](https://help.salesforce.com/s/articleView?id=release-notes.rn_einstein_bots.htm&type=5).

## 02/28/2023

### API Release v5.1.0

- Removed support for sending file attachments.

### SDK v2.1.X

- Uses API v5.1.0 and therefore doesn't support sending file attachments.

## 05/31/2022

### API Release v5.0.0

- Connect your channels faster with v5.0.0, which is more RESTful and simpler to use.
- Three new endpoints handle sessions instead of one.
  - Start a new session
  - Continue an existing session
  - End an existing session
- Bot and chat session IDs are path parameters instead of request body parameters.
- Supports bot responses with rich file attachments.
- Includes intents and entities in the API responses.
- API version 5 is HATEOS-compliant.

### SDK and Channel Connector Framework Release v2.0.X

- First publicly available version of the SDK and connector framework.
- Einstein Bots Java SDK integrates your client with the bot’s REST API v5.0.0 using Java-based tools and libraries.
- The channel connector framework uses Spring Boot to connect your app to the SDK.
- A version check makes sure you’re running the latest SDK version. You always need to be running the latest SDK version.

## 01/31/2022

### API Release v4.0.0

- First publicly available version of the Einstein Bots API.