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ClickHouseยฎ is a real-time analytics database management system
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Click House v26.2.1.1139-stable

Click House: v26.2.1.1139-stable Release

Release date:
February 27, 2026
Previous version:
v26.2.1.1-new (released January 26, 2026)
Magnitude:
6,639 Diff Delta
Contributors:
40 total committers
Data confidence:
Commits:
456 impacting commits

1143 Features Released with v26.2.1.1139-stable

Add jemalloc link to server index page and update allocation profiling docs
#98168
multistage prewhere in parquet reader v3
#93542
Revert "Merge pull request #93542 from scanhex12/multistage_prewhere"
#95496
Crash with old analyzer if JOIN and duplicated aliases
#96405
Fix pipeline stuck with fractional LIMIT/OFFSET in distributed queries
#96475
Limit s3queue metadata cache
#95809
Revert "Improve help output for ClickHouse applications"
#98038
Enforce Keeper component name in code
#96051
Check actual jemalloc profiling state via `system.asynchronous_metrics`
#97863
delta lake: fix logical race on snapshot version change, remove redundant heavy snapshot reloads
#96226
Allow to prewarm marks of secondary indexes
#97772
Revert " Implement AVX512BW versions for random data generation"
#93983
Fix pipeline stuck with negative LIMIT/OFFSET in distributed queries
#95357
Use `OpenSSL` 3.5.5
#95345
Bump libxml2
#95574
Google biglake catalog integration
#97104
Fix possible hung distributed queries when hostnames resolve to multiple addresses and a remote replica freezes
#94726
Remove confusing column `type` from `system.tokenizers`
#98066
Fix squashing partitioned delta lake data
#95773
Fix missing move of query_metadata_cache in BlockIO::operator=
#96995
Fix partition pruning (indexes) for row policy/PREWHERE with FINAL
#97076
Fix Keeper data loss using Azure Blob Storage with s3_plain
#97987
Support read in order for complex functions
#90256
Add missing SELECT grant check in `mergeTreeProjection` table function
#95480
Fix exception in destructor when workload is dropped during query execution
#95856
Fix CachedOnDiskReadBufferFromFile::readBigAt
#97890
Fix data race in ZooKeeper client between sendThread and receiveThread
#97887
PR: adding parallel_replicas_filter_pushdown setting
#95510
Fix: possible race condition on EXCHANGE TABLES query with sharded cache
#97411
Respect max_parts_to_merge_at_once in TTLPartDropMergeSelector
#95315

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Top Contributors in v26.2.1.1139-stable

robot-clickhouse
Blargian
rienath
maxknv
Algunenano
Michicosun
scanhex12
PedroTadim
tavplubix
fm4v

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