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ClickHouseยฎ is a real-time analytics database management system
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Click House v26.1.5.41-stable

Click House: v26.1.5.41-stable Release

Release date:
March 18, 2026
Previous version:
v26.1.4.35-stable (released February 28, 2026)
Magnitude:
76 Diff Delta
Contributors:
3 total committers
Data confidence:
Commits:
39 impacting commits

76 Features Released with v26.1.5.41-stable

Add restart-only `allow_nullable_tuple_in_extracted_subcolumns` setting for `Tuple/Variant/Dynamic/JSON` tuple subcolumns compatibility
#97299
Use `mongo-c-driver` 2.2.2
#98304
Fix reading subcolumns of ALIAS columns
#95408
Change default stderr_reaction to log_last for executable UDFs
#99232
Fix server crash when dropping a patch part after schema change
#99036
Fix `sumCount` aggregate function not being able to read older serialized states after introduction of `Nullable(Tuple)`
#97502
Fix `SYSTEM START REPLICATED VIEW` not waking up the refresh task
#98797
Fix missing move of query_metadata_cache in BlockIO::operator=
#96995
Fix row policy bypass via `loop` table function
#97682
Fix column rollback in StorageBuffer::appendBlock
#98551
Fix max_execution_time not being applied for backup/restore
#99205
Enforce READ ON FILE checks for scalar file() and DESCRIBE TABLE file().
#98115
Allow `CAST(... AS Nullable(T))` monotonicity to enable read-in-order optimization and primary key pruning
#98482
Fix usage of text index with other skip indexes
#98555
Fix reading of text index with lightweight deletes and row policies
#99661
Fix `ActiveDataPartSet::hasPartitionId`
#97748
Return unknown filter result on non-built ColumnSet
#99112
Try not to re-caclculate indexes in requestReadingInOrder
#99084
Use `postgres` REL_18_3
#98306
CI: skip all jobs for release PRs in filter_job hook
#98740
Fix tuple subcolumn access by name for external tables
#98755
Fix exception when arrayJoin in WHERE is pushed below JOIN
#97239
Fix off-by-one in ToDateMonotonicity boundary check
#98276
Fix adjusting RLIMIT_SIGPENDING (via pending_signals)
#98829
Fix query tree pass order for `GROUP BY` rewrites
#98980
Do not check grants for every query tree node during `InverseDictionaryLookupPass`
#99210
Fix crash on memory limit happened while applying patches
#99086
Fix CHECK TABLE with sparse serialization inside Tuple with Dynamic
#99351
Forward incompatibility in 26.2: `Remove unnecessary parentheses in CREATE TABLE ... AS SELECT ... COMMENT`
#97843
Fix null pointer dereference in `DataTypeFunction::updateHashImpl`
#96479

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Top Contributors in v26.1.5.41-stable

robot-clickhouse
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