Dhruv
06/01/2026, 5:43 AMRocky
06/01/2026, 5:43 AMDefaultValueColumnIterator for complex types (#71142).
* Potential hash table data loss during aggregation spills (#70851).
* Issues with AggregateJoinPushDownRule rewriting materialized views over Iceberg tables (#71856).
Recommendation: If you are moving to the 4.1 branch for features like the new Native Iceberg Variant type or Adaptive Multi-Tenant Data Management, 4.1.1 is the stable starting point for production. As always, perform a backup and test the upgrade in a staging environment first, especially given the downgrade restrictions.
References
• release_notes/release-3.5.md
• release_notes/release-3.3.md
• release_notes/release-4.0.mdDhruv
06/02/2026, 6:23 AMRocky
06/02/2026, 6:23 AMBE SIGSEGV (crash) in PartitionedSpillerWriter during spillable aggregations with skew elimination (#74074).
* Optimized CatalogRecycleBin to prevent overhead during tablet scheduling and cleanup (#72128).
* Added an Avro schema cache for Iceberg to reduce redundant memory allocations during partition loads (#72215).
* Security & Connectivity:
* Credential Redaction: Cloud storage secrets are now redacted in error messages for INSERT INTO FILES, preventing sensitive data from leaking into logs (#71245).
* LDAP Improvements: Added support for LDAP direct bind authentication via DN patterns (#71589).
* Data Correctness:
* Fixed an issue where queries against "insert-only" ACID Hive tables could return incorrect results; these now return an explicit error instead of silent data gaps (#71460).
* Corrected binary encoding for VARBINARY columns nested inside complex types (ARRAY, MAP, STRUCT) to prevent parsing issues in MySQL clients (#71346).
Summary for Docker Users
If you are using the Docker image, 4.1.1 is the mandatory version to use if you want the 4.1 feature set (like range-based auto-splitting or Native Iceberg Variant support). Version 4.1.0 had a known container-specific load order issue (#71825) that caused BE processes to fail at startup; 4.1.1 resolves this while bringing in the stability fixes from the 4.0.10 cycle.
References
• release_notes/release-4.0.md
• release_notes/release-4.1.md
• administration/Maintenance.md