Drill 1.21.2.350 (DEP 10.1.0) Release Notes

The notes below relate specifically to the HPE Ezmeral Data Fabric distribution for Apache Drill. You may also be interested in the Apache Drill homepage and the Apache Drill release notes:

Version 1.21.2.350
Release Date April 2026
HPE Version Interoperability See Ecosystem Support Matrix and Ecosystem Pack Components and OS Support.
Package Names See Package Names for Ecosystem Packs (EEPs and DEPs)

New in This Release

Drill 1.21.2.350 introduces the following enhancements or HPE platform-specific behavior changes:

  • CVE fixes.
  • Bug fixes.

Fixes

This HPE release includes the following fixes on the base release:
Commit Date (YYYY-MM-DD) Comment
6375786223 2026-03-26 MD-6649: Add support for Iceberg TIMESTAMP with time zone
66d8b27a25 2026-03-19 MD-6659: Update Netty framework to 4.1.131
aece5f99bb 2026-03-18 MD-6669: Disable HashAgg for collect_to_list_varchar due to ordering requirements
4478663085 2025-04-10 MD-6654: [MINOR UPDATE] upgrade to POI 5.4.1 (#2983)
bb6d41f1d6 2025-12-12 Regenerate C++ protobuf sources using protoc 25.5 and libprotobuf 4.25.5
2947280539 2025-12-01 MD-6648: resolve orc-core transitive dependencies conflict

Known Issues

  • DRILL-8511: Experimental JSON reader (configuration option store.json.enable_v2_reader set to true) fails with IllegalStateException when a batch reaches the rows limit.

Limitations

  • Some unequal left joins may start failing in this release. For details, see Drill Limitations: Unequal JOIN Support.
  • The Hive storage plugin for Drill does not support reading of the parquet timestamp type with the int64 logical type.