Delta Lake 4.4 vs 4.3: The Spark 4.2 Upgrade Trap
Delta Lake 4.4 defaults to Spark 4.2 and breaks delta-iceberg compatibility. What changes with identity columns, VOID types, and Unity Catalog metric views.
Apache Spark 4.2 vs 4.1: CDC, Geospatial and Arrow-by-Default Risks
Spark 4.2 adds a SQL CHANGES clause, GEOMETRY/GEOGRAPHY types and Arrow Python UDFs by default. What changed from 4.1 and what breaks on upgrade.
Trino vs Presto vs Apache Spark: Lakehouse Query Engines Compared (2026)
Trino vs Presto vs Apache Spark for the lakehouse: MPP vs batch execution, latency, concurrency, Iceberg support, cost, and a decision matrix for query engines in 2026.