Project
The tenant-wide data lake underneath Microsoft Fabric, built on Azure Data Lake Storage.
Microsoft made Fabric IQ the default business context for Microsoft 365 Copilot at FabCon Barcelona and opened it to outside agents over MCP. The metric definitions teams keep in Power BI semantic models now shape what those agents answer.
Reality
Rust's Iceberg REST client ran up to 4.29x faster than pyiceberg on a local catalog, with 85% to 90% of the gap in Python's HTTP library. pyiceberg covers 21 of 25 tested endpoints to Rust's 13, so coverage settles the choice before speed does.
Reality
Apache Iceberg's Rust REST client, iceberg-catalog-rest 0.10.1, implements 13 of 25 tested catalog operations and logs in to five of seven catalogs. The two it cannot log in to are AWS Glue and S3 Tables, and reaching them from Rust means a different crate with a different operation set.
Reality
A read-only MCP server with four Iceberg tools ran against six live catalogs off a single environment variable. Three of the tools worked on pyiceberg alone, and the fourth needed a storage package for the object store.
Reality
A step-by-step build of the same Apache Iceberg data agent on Google ADK, AWS Strands and Microsoft Agent Framework measures what a cloud move costs in code, in latency and in storage wiring.
Reality
Microsoft documents no configurable mirroring window, and support confirmed that restarting a mirror reloads the whole table instead of resuming from the last CDC position. The estate here has roughly 2,500 tables.
Reality
Coverage extending to temporary cluster data removes the exact objection security reviewers used to block Spark workloads. The platform did not change much; the exception request did.
Reality