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ClickHouseยฎ is a real-time analytics database management system
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Click House v26.2.6.27-stable

Click House: v26.2.6.27-stable Release

Release date:
March 27, 2026
Previous version:
v26.2.5.45-stable (released March 19, 2026)
Magnitude:
147 Diff Delta
Contributors:
2 total committers
Data confidence:
Commits:
27 impacting commits

52 Features Released with v26.2.6.27-stable

Support Batch Remove for Azure
#100522
Remove support of text index for functions with negation
#99393
Revert "Experiment: use azurite-rs instead of azurite for functional tests"
#100618
Fix usage of text index with functions `startsWith` and `endsWith`
#100151
Fix implicit index compatibility when upgrading replicated tables from 25.10
#99392
Add ProfileEvents for object storage listing/reading introspection
#99778
System wait blobs cleanup query
#98743
Validate file paths in backup metadata to reject path traversal
#100483
Fix `If`, `Distinct`, `DistinctIf`, `IfState ` aggregate function combinators with `Tuple` return type not being able to read older serialized states after introduction of `Nullable(Tuple)`
#100826
Mask secrets for XDBC and NATS engines
#99344
Increase retry count when updating ACL objects in Keeper
#98697
Fix several minor bugs in text index
#99755
Fix terminate on memory limit in `StringHashTable`
#100213
Fix shared variant column pointers in `ColumnVariant::filter`
#100234
Forbid reading google credentials from local file
#99584
Fix segfault due to bad cast in `SerializationInfoTuple`
#100509
Fixed rare incorrect marking of a data part as broken and detaching it after `DETACH/ATTACH TABLE` query.
#99529
Fix assertion failure in CRoaring on self-merge of NumericIndexedVector
#99976
Fix not ready set in text index analysis
#100224
Fix DeltaLake CDF copy-paste bug: second OR-branch of is_delta_lake_cdf checked wrong setting
#100454
Fix missing stream exception for nested JSON in wide parts
#100475
Fix very expensive version tweak calculation
#100548
Make version calcuation 2x faster in Config Workflow
#100549
Fix ignoring of TABLE_UUID_MISMATCH for non analyzer
#99380
Backport #99529 to 26.2: Fixed rare incorrect marking of a data part as broken and detaching it after `DETACH/ATTACH TABLE` query.
#100106
Backport #99976 to 26.2: Fix assertion failure in CRoaring on self-merge of NumericIndexedVector
#100099
Backport #99380 to 26.2: Fix ignoring of TABLE_UUID_MISMATCH for non analyzer
#100082
Backport #99778 to 26.2: Add ProfileEvents for object storage listing/reading introspection
#100070
Backport #99392 to 26.2: Fix implicit index compatibility when upgrading replicated tables from 25.10
#100060
Fix incorrect partition pruning for toWeek() function
#99542

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