FabCon and SQLCon 2026 made the Microsoft Fabric and Azure Databricks story more concrete. The headline changes were not cosmetic. Microsoft moved zero-copy access to OneLake data from Azure Databricks into public preview, made Direct Lake in OneLake generally available, kept expanding Databricks-to-Fabric mirroring, and then pushed shortcut transformations into general availability in April. Put plainly, the platform story is moving away from “pick one stack forever” and toward “publish governed products that multiple engines can use.”
That matters because too many teams still call a dataset a product. Microsoft’s current guidance is more precise than that. A data product has defined shape, interfaces, maintenance expectations, and refresh cycles. It is processed for analytical use, and it should be discoverable, secure, interoperable, and valuable enough to serve downstream consumers without forcing them back into raw source complexity. The OneLake Catalog is now described in the Cloud Adoption Framework as a unified access surface for approved data products across Fabric and external processing platforms such as Databricks.
That is where Quantum Regression is a useful teaching device. I am not using it here as a product feature – or even going into the technology -, I am using it as a way to think about how data products enable modular expansions to the data estate. In this framing, a data product is an independent transformation: it accepts ingestions, applies logic, enforces quality and policy, and surfaces results. The file, table, semantic model, or API is only the current observable state of that transformation. The product is the operator, not the artifact. That is the mindset shift that helps make interoperability useful instead of merely fashionable.
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