Hi @ChristianRRL ,

The answer is simple 🙂 Serverless compute always run on the latest runtime version. You cannot choose it like in standard compute.

Connect to serverless compute | Databricks on AWS

In Serverless compute you can only choose different environment (i.e each environment version includes a specific Python version and a set of Python packages with defined versions.)

Serverless environment versions - Azure Databricks | Microsoft Learn