APACHE ICEBERG 1.12.0: WHAT'S NEW, BREAKING CHANGES, AND UPGRADE GUIDE

Summary from the TLDR Data newsletter

Apache Iceberg 1.12.0 broadens production support for major v3 capabilities, including Variant, geospatial types, row lineage, deletion vectors, encrypted metadata, and REST catalog operations. However, it also removes platform support and deprecated APIs, so treat this as a substantial upgrade and test compatibility carefully before rollout.