# Connector Development Kit (CDK) v4.22.0 - Token Request Operation

**What’s New in CDK?**

Introducing the token-request operation for enhanced authentication flexibility.

**User-Facing Changes:**

The new token-request operation allows for customised authentication and token refresh logic, surpassing standard configurations. This feature is crucial for bespoke authorisation workflows, supporting non-standard token exchanges and complex multi-step authentication processes. It enables continuous, secure API access and broadens integration capabilities with various services.

For detailed implementation guides and more information, please visit the [Tray Developer Portal](https://tray.ai/documentation/developer/connector-development-kit/developing-connectors/authentications/token-request-non-standard).