Hi, All. We highly recommend Apache ORC 1.6.9 as the latest and the most stable one.
The Apache ORC community has been trying to deliver the latest improvements and bug fixes to all users. The following is the Apache ORC 1.6.9 adoption status in several Apache top-level projects. - 2021-07-02 Apache ORC 1.6.9 is released. - 2021-07-02 SPARK-35992: Upgrade ORC to 1.6.9 - 2021-07-16 ICEBERG: Upgrade ORC to 1.6.9 - 2021-07-26 HIVE-25384: Bump ORC to 1.6.9 - 2021-07-30 ARROW-13506: Upgrade ORC to 1.6.9 - (Under Review) Apache Druid: Upgrade ORC to 1.6.9 https://github.com/apache/druid/pull/11518 Best, Dongjoon.