Consumer hardware, columnar formats, single-node engines, and the Iceberg REST catalog crossed a threshold: a large share of cluster work now runs locally against the same governed tables.
The Iceberg and Parquet specifications are co-evolving. Several of the most consequential Iceberg v4 proposals are waiting on Parquet work, and practitioners should read both dev lists.
Residency is a storage location. Sovereignty is who can compel access, who operates the systems, and whether you can leave. A practical guide to sovereign lakehouse architecture in 2026.
Iceberg table maintenance commoditized when every platform started shipping it. What the six operations are, what they cost, and the observability you should keep even when the work is managed.
