Release 26.6.4.20001 Altinity Antalya · Altinity/ClickHouse

Support for Databricks deletion vectors (#2271 by @ianton-ru)
Renamed the export_merge_tree_part_schema_mismatch_mode setting for EXPORT PART/EXPORT PARTITION to export_merge_tree_part_schema_match_mode. Added the export_merge_tree_part_ignore_extra_source_columns setting, which allows a source column without a matching destination column to be dropped (#2284 by @k-morozov)

Reload cluster discovery settings from remote_servers without restart. (#2197 by @ianton-ru)
Datalake catalog auth token profile events (#2222 by @ianton-ru)
Improvements and fixes to the experimental content-addressed storage (cas) metadata-storage type: ALTER TABLE ... EXPORT PARTITION now works from a CAS-disk source; fetch-by-relink always lands a same-pool part on that pool's disk instead of occasionally streaming its bytes; a disk's teardown no longer blocks on an in-flight GC round; several GC-round cost cuts on real object storage (round-trip counts down by 60-300x on the measured phases); a reliability overhaul of the CAS-to-object-storage request layer closing several conditional-write edge cases; and the CAS wire-format's internal JSON keys are renamed from abbreviations to descriptive names (format generation reset; no compatibility concern, since CAS has no released, persisted data yet). (#2300 by @filimonov)
Support Decimal types when writing into Iceberg tables, including decimal partition columns and decimal min/max statistics. (ClickHouse#115832 by @scanhex12 via #2320)

Fix join filter pushdown (#2249 by @ianton-ru)
Partition export - fix incomplete data on multi file export after restart (#2294 by @arthurpassos)

Update libssl3 and libcrypto3 to fix HIGH CVEs in alpine docker image. (#2273 by @MyroTk)

Packages

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

Full Changelog: fc67ca2...2073b1f