# SageMaker Unified Studio adds Iceberg catalog and IAM DocumentDB connections

> Amazon SageMaker Unified Studio now lets users link external Iceberg catalogs and connect to DocumentDB using IAM roles, without extra cost.

Oossa · 2026-09-29 · https://oossa.com/en/sagemaker-unified-studio-adds-iceberg-catalog-and-iam-documentdb-connections

Amazon SageMaker Unified Studio announced two new ways to link data sources. First, it can connect to external Apache Iceberg catalogs via the Iceberg REST specification, supporting Snowflake Open Catalog, Databricks Unity Catalog and generic IRC types. Second, it now authenticates to Amazon DocumentDB using IAM roles, removing the need to store usernames or passwords. Both features work across all regions where Studio is offered and cost nothing extra.

## The facts

- Iceberg REST Catalog connections announced on Sep 28, 2026
- IAM authentication requires DocumentDB 5.0 or later with TLS

## Why it matters

Data teams can access more governed sources securely and without managing credentials, simplifying analytics pipelines.

## Sources & references

1. [Amazon SageMaker Unified Studio now supports two new connection capabilities: Iceberg REST Catalog connections and IAM authentication for Amazon DocumentDB](https://aws.amazon.com/about-aws/whats-new/2026/09/sagemaker-iceberg-rest-iam-documentdb/) – AWS, 2026-09-28

Last updated: 2026-09-29