# FabCon Vienna: Graph in Fabric enters public preview

> At FabCon Vienna, Microsoft put a native graph store with GQL queries into public preview, released a developer Fabric MCP and extended data agents to all mirrored databases.

By Matt O'Donnell. Published September 18, 2025.  
Tags: microsoft fabric, data agents, mcp.  
Canonical: https://kenseme.com/blog/fabcon-vienna-2025-graph-in-fabric/

The European Fabric Community Conference opened in Vienna on September 16, 2025.

## What was announced

1. **Graph in Fabric, in public preview.** A native graph store that runs GQL queries over data in OneLake. Regional rollout starts October 1.
2. **Fabric MCP, in preview**, aimed at developers, for generating code and authoring Fabric items.
3. **Data agents on all mirrored databases**, so a data agent can answer from data mirrored into Fabric from other systems.
4. **CI/CD for data agents**, so they can move through development, test and production like other Fabric items.
5. **OneLake security** reaches full preview.

## Why it matters

A graph store is a big step for questions that are really about relationships: which suppliers feed which plants, which customers share an account manager, how a delay at one site spreads. Tables can answer those, but the queries get long and fragile.

A graph is a way to store connections. It does not decide what the connections mean. Someone still has to say that a "supplies" link between a vendor and a plant is the contract relationship and not a one-time purchase. CI/CD for data agents points the same way: the instructions and definitions behind an agent are now treated as something to version and review, which is where they belong.

## Sources

1. [FabCon Vienna: build data-rich agents on an enterprise-ready foundation (Microsoft Fabric Blog)](https://www.microsoft.com/en-us/microsoft-fabric/blog/2025/09/16/fabcon-vienna-build-data-rich-agents-on-an-enterprise-ready-foundation/)