2026-02-20 Apache Polaris Apache Polaris is an open-source, fully-featured catalog for lakehouse. Apache Polaris implements the Apache Iceberg REST API, enabling seamless multi-engine interoperability across a wide range of platforms, including Apache Doris, Apache Flink, Apache Spark, ... Java Python 1.3.0-incubating 2026-01-16 1.3.0-incubating