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ClickHouse® is a real-time analytics database management system

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Click House v26.3.34.136-lts

Click House: v26.3.34.136-lts Release

Release date:

September 26, 2026

Previous version:

v26.3.33.24-lts (released September 9, 2026)

Magnitude:

447 Diff Delta

Contributors:

13 total committers

Data confidence:

Commits:

79 Commits in this Release

Ordered by the degree to which they evolved the repo in this version.

Backport #119346 to 26.3: Bump `mongo-c-driver` to 2.5.4 and `mongo-cxx-driver` to r4.6.0

Authored September 21, 2026

Backport #118063 to 26.3: Check column-level SELECT grants for additional_table_filters and parallel_replicas_custom_key

Authored September 11, 2026

Backport #119680 to 26.3: Validate the length of a `BIT` column value coming from MySQL

Authored September 13, 2026

Backport #108497 to 26.3: RabbitMQ: bound all blocking event loops with a timeout to prevent indefinite hangs on dead connections

Authored September 9, 2026

Backport #120036 to 26.3: Fix silent truncation at `LimitReadBuffer` limits and the multipart form budget

Authored September 25, 2026

Backport #116692 to 26.3: Prevent stale OpenSSL errors from breaking asynchronous TLS connections

Authored September 25, 2026

Backport #111287 to 26.3: Fix double free when finalizing -State aggregates under looping combinators

Authored September 25, 2026

Backport #119846 to 26.3: Reject paths with an embedded NUL byte in filesystem containment checks

Authored September 18, 2026

Backport #119302 to 26.3: Revert "Revert "Proper partition pruning with dates""

Authored September 26, 2026

Backport #120972 to 26.3: MySQL dictionary source: accept `enable_local_infile` only in the configuration file

Authored September 25, 2026

Backport #120230 to 26.3: Fix a Redis full scan dropping rows, and an out-of-range access on a malformed MGET reply

Authored September 22, 2026

Backport #118360 to 26.3: Require the local privilege for KILL and SYSTEM statements over ON CLUSTER

Authored September 24, 2026

Backport #115991 to 26.3: Validate the Keeper path when converting a table with ATTACH AS REPLICATED

Authored September 21, 2026

Backport #118649 to 26.3: Bump `libxml2` from 2.15.3 to 2.15.4

Authored September 9, 2026

Backport #111992 to 26.3: Fix a mutated part losing files to the temporary directory cleanup

Authored September 17, 2026

Backport #118828 to 26.3: Update usearch to include the arena capacity limitation fix

Authored September 9, 2026

Backport #117421 to 26.3: Fix SQL injection through identifiers when inserting into a SQLite table

Authored September 24, 2026

Backport #105112 to 26.3: Fix chronic flaky test_distributed_frozen_replica: bypass connection pool in pause-effective probe

Authored September 11, 2026

Backport #117699 to 26.3: Reject the Detached serialization kind in data received from a client

Authored September 22, 2026

Backport #114344 to 26.3: Validate a verbatim codec's declared size in the passthrough read shortcut

Authored September 24, 2026

Backport #109212 to 26.3: Verify array offsets read as absolute values, not only in the Native format

Authored September 8, 2026

Backport #120713 to 26.3: Add a setting to disable reading through the executable table function and Executable/ExecutablePool tables

Authored September 22, 2026

Backport #110941 to 26.3: Fix Iceberg PREWHERE on renamed column returning wrong (0) rows

Authored September 9, 2026

Adapt the `NATS` closed-connection recovery to 26.3

Authored September 14, 2026

Backport #119487 to 26.3: Mask secrets in `system.asynchronous_insert_log.query`

Authored September 14, 2026

Backport #120935 to 26.3: Do not dereference the optional copy properties of an asynchronous Azure copy

Authored September 19, 2026

Backport #119029 to 26.3: Require the `READ ON FILE` grant when a `Filesystem` database serves a table from its cache

Authored September 11, 2026

Backport #108474 to 26.3: Fix SQL injection in MySQL wire protocol replacement queries

Authored September 15, 2026

Backport #120202 to 26.3: Retry `poll` on `EINTR` in the vendored `nats-io` client

Authored September 21, 2026

Fix PostgreSQL backport compilation

Authored September 8, 2026

Backport #103525 to 26.3: decode URL-encoded paths in the legacy Delta Lake reader

Authored September 23, 2026

Backport #120282 to 26.3: Bound column count in inserted RowBinary header

Authored September 24, 2026

Backport #110437 to 26.3: Serialize iceberg metadata log content lazily

Authored September 1, 2026

Remove unsupported PostgreSQL detach tests

Authored September 9, 2026

Adapt to 26.3: rebuildable TTL, subcolumn TTL inputs, no `Nullable(Tuple)`

Authored September 13, 2026

Fix a bug that MySQL/Postgres queries may run in an expired session

Authored September 23, 2026

Backport #116591 to 26.3: CI: fix integration test session timeouts (shard balance and batch count)

Authored September 12, 2026

Backport #119585 to 26.3: Detach a patch part whose index lost its content to a zeroed block

Authored September 25, 2026

Adapt 04848 to 26.3: drop the Quantized case and packed_skip_index_max_bytes

Authored September 25, 2026

Resolve the 26.3 cherry-pick conflicts of #110584

Authored August 28, 2026

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Top Contributors in v26.3.34.136-lts

robot-clickhouse

alexey-milovidov

antonio2368

PedroTadim

CheSema

Algunenano

rschu1ze

rienath

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