Home » Oreps » Click House » All Releases » v26.8.1.2041-lts Release
clickhouse/clickhouse
ClickHouseยฎ is a real-time analytics database management system
Watch
3
Commit Activity
Pull Requests
Directory Browser
Velocity History
Releasesv26.8.1.2041-lts
Basic Details Issues Addressed Top Contributors Directory Browser
Click House v26.8.1.2041-lts

Click House: v26.8.1.2041-lts Release

Release date:
September 13, 2026
Previous version:
v26.8.1.1-new (released July 22, 2026)
Magnitude:
2,536 Diff Delta
Contributors:
51 total committers
Data confidence:
Commits:
1,187 impacting commits

46 Features Released with v26.8.1.2041-lts

Respect use_client_time_zone for string datetime literals parsed on the server
#109051
Add the `default_session_user` server setting
#110179
Fix SQLite WHERE predicate pushdown for strings with special characters
#104217
Mask session_token and Google ADC secrets in the explicit-url S3 form
#109768
Fix filling of missed subcolumns
#66243
Fix memory tracker leak when a parent tracker throws MEMORY_LIMIT_EXCEEDED
#110784
Configurable per-CPU jemalloc arena pool for MergeTree metadata
#109490
Mutations via `MutateAllPartColumnsTask` write `checksums.txt` without hardlinked skip-index files
#109595
Identifier resolution error in select when table has same name as database
#82084
Remove `library` dictionary source
#106190
Resolve JOIN USING identifier from aliases nested in the SELECT list
#110739
Preserve original key order in bucketed Map serialization
#109178
Cannot aggregate a `Variant` produced by `if`/`coalesce`/`multiIf` over mixed types
#106707
Segfault (write) in `Parquet::Dictionary::index` with dictionary-encoded DECIMAL column โ€” physical width wider than destination (native reader v3, 26.7.1)
#112659
`getRequiredAccessForDDLOnCluster` uses the `SYSTEM DROP CACHE` privilege GROUP for the whole cache block, so an `ON CLUSTER` cache command demands all ~29 leaf privileges and `SYSTEM SYNC FILESYSTEM CACHE ON CLUSTER` never checks its own privilege
#114011
Range condition in JOIN ON against a single-row side is not used for index analysis (no part pruning) since the logical join step became default
#112586
connection_pool_max_wait_ms default is 0, (non negative), but Common/PoolBase.h check expect it to be <0
#112053
Add a new "private preview" feature tier
#113481
Add compatibility setting to qualify column names as the old analyzer did with multiple joins
#110746
Query planner stuck for hours in bloom_filter index analysis when WHERE references a large scalar subquery Map, query cannot be killed
#113003
Fix possible logical error "Unexpected substream ... for column ..." during bump of compatibility setting
#109496
Stateless tests (amd_msan, WasmEdge, parallel, N/2) no longer fit the 9000s job budget: killed mid-suite with no failing test
#113164
JOIN on parameterized view fails with UNKNOWN_IDENTIFIER
#65318
Iceberg OPTIMIZE rejects position-delete overwrite snapshots when deleted row count != delete file count
#113745
Heap-use-after-free: Parquet v3 prefetcher reads and writes through a `ReadBuffer` freed by `IInputFormat::onFinish`
#114612
CI: `SYSTEM FLUSH LOGS query_log` hangs for 180 s in `Stateless tests (amd_tsan, flaky check)` across unrelated pull requests since 2026-07-24
#112191
Materialized CTE over Distributed: 49 LOGICAL_ERROR "Reading from materialized CTE before its materialization completed - DelayedPortsProcessor gate is missing" survives the #108924 fix
#113184
geoToH3 error messages reference swapped argument positions in default lat_lon mode
#101813
Revert "Add test: Streaming-subscription ALTER guard untested; PR adds `MODIFY_PROJECTION` to it"
#115934
I can create a table so that later ALTER TABLE ... DROP COLUMN gives syntax error
#109370

Browse Other Releases

Latest Pending Unreleased ๐Ÿ˜Ž
v26.8.6.5-lts Released September 16, 2026
0 ฮ”
v26.8.5.13-lts Released September 15, 2026
6 ฮ”
v26.8.4.11-lts Released September 14, 2026
23 ฮ”
v26.8.3.105-lts Released September 13, 2026
647 ฮ”
v26.8.2.7-lts Released September 1, 2026
19 ฮ”
v26.8.1.2041-lts Released September 13, 2026
2,536 ฮ”
v26.8.1.1-new Released July 22, 2026
0 ฮ”
v26.7.37.6-stable Released October 21, 2026
3 ฮ”
v26.7.36.9-stable Released October 21, 2026
7 ฮ”
v26.7.35.11-stable Released October 20, 2026
46 ฮ”

Top Contributors in v26.8.1.2041-lts

alexey-milovidov
groeneai
robot-clickhouse
Algunenano
PedroTadim
thevar1able
azat
nihalzp
CheSema
vitlibar

Directory Browser for v26.8.1.2041-lts

All files are compared to previous version, v26.8.1.1-new. Click here to browse diffs between other versions.

Loading File Browser...
GitClear uses cookies to ensure you get the best experience on our website. Learn more about our cookie policy