39.0.0

List view

feat: add support for specifying queryable historical tiers via query context

Area - Documentation

Status: Open (in progress).

apache/druidnumber 19537

#19537 In apache/druid;

· jtuglu1 opened on Jun 1, 2026

perf: add SIMD acceleration for min/max long/double expressions

Performance

Status: Draft (not ready).

apache/druidnumber 19691

#19691 In apache/druid;

· jtuglu1 opened on Jul 15, 2026

fix: HyperLogLogCollector returns zero cardinality when a single element overflows into sparse mode

Bug

Status: Open (in progress).

apache/druidnumber 19678

#19678 In apache/druid;

· asdf2014 opened on Jul 12, 2026

feat: add column-level lineage to the OpenLineage

Area - Documentation

Area - Metrics/Event Emitting

Status: Open (in progress).

apache/druidnumber 19643

#19643 In apache/druid;

· mshahid6 opened on Jun 30, 2026

feat: Propagate Request Headers

Area - Documentation

Area - Ingestion

Area - Querying

Area - Streaming Ingestion

Status: Open (in progress).

apache/druidnumber 19572

#19572 In apache/druid;

· mshahid6 opened on Jun 9, 2026

feat: Adds an opt-in vectorized read path to the Iceberg input source using iceberg-arrow.

Area - Dependencies

Area - Documentation

Status: Open (in progress).

apache/druidnumber 19510

#19510 In apache/druid;

· Shekharrajak opened on May 23, 2026

feat: add etag conditional write support to dynamic config

Area - Documentation

Area - Ingestion

Kubernetes

Status: Open (in progress).

apache/druidnumber 19501

#19501 In apache/druid;

· jtuglu1 opened on May 22, 2026

Realtime scans from MSQ cannot reliably read complex types

Area - MSQFor multi stage queries - https://github.com/apache/druid/issues/12262For multi stage queries - https://github.com/apache/druid/issues/12262

Bug

MSQ

Status: Open.

#18340 In apache/druid;

· gianm opened on Jul 30, 2025

feat: segment availability improvements

Status: Open (in progress).

apache/druidnumber 19889

#19889 In apache/druid;

· jtuglu1 opened on Aug 5, 2026