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sidebar_position: 1
sidebar_label: 2024
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# 2024 Changelog

### ClickHouse release v24.1.8.22-stable (7fb8f96d3da) FIXME as compared to v24.1.7.18-stable (90925babd78)

#### Bug Fix (user-visible misbehavior in an official stable release)

* Fix possible incorrect result of aggregate function `uniqExact` [#61257](https://github.com/ClickHouse/ClickHouse/pull/61257) ([Anton Popov](https://github.com/CurtizJ)).
* Fix consecutive keys optimization for nullable keys [#61393](https://github.com/ClickHouse/ClickHouse/pull/61393) ([Anton Popov](https://github.com/CurtizJ)).
* Fix bug when reading system.parts using UUID (issue 61220). [#61479](https://github.com/ClickHouse/ClickHouse/pull/61479) ([Dan Wu](https://github.com/wudanzy)).
* Fix client `-s` argument [#61530](https://github.com/ClickHouse/ClickHouse/pull/61530) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Fix string search with const position [#61547](https://github.com/ClickHouse/ClickHouse/pull/61547) ([Antonio Andelic](https://github.com/antonio2368)).
* Fix crash in `multiSearchAllPositionsCaseInsensitiveUTF8` for incorrect UTF-8 [#61749](https://github.com/ClickHouse/ClickHouse/pull/61749) ([pufit](https://github.com/pufit)).

#### CI Fix or Improvement (changelog entry is not required)

* Backported in [#61431](https://github.com/ClickHouse/ClickHouse/issues/61431):. [#61374](https://github.com/ClickHouse/ClickHouse/pull/61374) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Backported in [#61488](https://github.com/ClickHouse/ClickHouse/issues/61488): ... [#61441](https://github.com/ClickHouse/ClickHouse/pull/61441) ([Max K.](https://github.com/maxknv)).
* Backported in [#61642](https://github.com/ClickHouse/ClickHouse/issues/61642):. [#61592](https://github.com/ClickHouse/ClickHouse/pull/61592) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).

#### NO CL ENTRY

* NO CL ENTRY:  'Revert "Backport [#61479](https://github.com/ClickHouse/ClickHouse/issues/61479) to 24.1: Fix bug when reading system.parts using UUID (issue 61220)."'. [#61775](https://github.com/ClickHouse/ClickHouse/pull/61775) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)).

#### NOT FOR CHANGELOG / INSIGNIFICANT

* Speed up cctools building [#61011](https://github.com/ClickHouse/ClickHouse/pull/61011) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).