25.8.12.20747 Altinity Antalya

Altinity Antalya release v25.8.12.20747.altinityantalya (f5fb292) as compared to upstream/v25.8.12.129-lts (a53ebd72b2d)

New Feature

• Introduce token-based authentication and authorization (#1078 by @zvonand)
• Split large parquet files on part export, preserve entire settings object in part export (#1229 by @arthurpassos)

Improvement

• Profile events for task distribution in ObjectStorageCluster requests (#1172 by @ianton-ru)
• Set max message size on parquet v3 reader to avoid getting DB::Exception: apache::thrift::transport::TTransportException: MaxMessageSize reached (#1198 by @arthurpassos)

Performance Improvement

• Parquet reader v3 is enabled by default (ClickHouse#79012, ClickHouse#87735 and ClickHouse#88827 by @al13n321 via #1232)
• Distributed execution: better split tasks by row groups IDs, not by files (ClickHouse#87508 by @scanhex12 via #1237)

Critical Bug Fix (crash, data loss, RBAC) or LOGICAL_ERROR

• Fix segfault on unexpected node shutdown (#1201 @ianton-ru)
• Fix segfault in requests to system,table when table in Iceberg catalog does not have snapshot (#1211 by @ianton-ru)
• Now datalakes catalogs will be shown in system introspection tables only if show_data_lake_catalogs_in_system_tables explicitly enabled (ClickHouse#88341 by @alesapin via #1239)

Bug Fix (user-visible misbehavior in an official stable release)

• Fix IN with Iceberg table (#1168 by @ianton-ru)
• Fix for task distribution in cluster requests (#1178 by @ianton-ru)
• Fix min/max value in Iceberg writes (#1192 by @ianton-ru)
• Fixes a bug where toDateTimeOrNull of a negative argument returns NULL (ClickHouse#90490 by @yariks5s via #1206)
• Fix missing leading slash for some local iceberg tables (#1212 by @zvonand)
• Revert "Fix redundant host resolution in DDL Worker" (#1219 by @ianton-ru)
• explicit POCO request for REST-polaris catalog (ClickHouse#91437 by @scanhex12 via #1224)
• Fix confusing cluster name and named collection name in cluster functions (#1234 by @ianton-ru)

Build/Testing/Packaging Improvement

• Fix test 03644_object_storage_correlated_subqueries (#1203 by @ianton-ru)

Documentation

• Documentation for Swarm features in Antalya branch (#1165 by @ianton-ru)

And ALL Antalya features from previous releases

Packages

Available for both AMD64 and Aarch64 from https://builds.altinity.cloud/#altinityantalya as either .deb, .rpm, or .tgz

Docker images

Available for both AMD64 and Aarch64: altinity/clickhouse-server:25.8.12.20747.altinityantalya

Full Changelog: https://github.com/ClickHouse/ClickHouse/compare/v25.8.12.129-lts...Altinity:ClickHouse:v25.8.12.20747.altinityantalya?expand=1