---
sidebar_position: 1
sidebar_label: 2023
---

# 2023 Changelog

### ClickHouse release v22.11.3.47-stable (1c49d124a37) FIXME as compared to v22.11.2.30-stable (28f72d8ab09)

#### Build/Testing/Packaging Improvement
* Backported in [#44113](https://github.com/ClickHouse/ClickHouse/issues/44113): Bring sha512 sums back to the building step. [#44017](https://github.com/ClickHouse/ClickHouse/pull/44017) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Backported in [#44434](https://github.com/ClickHouse/ClickHouse/issues/44434): Kill stress tests after 2.5h in case of hanging process. [#44214](https://github.com/ClickHouse/ClickHouse/pull/44214) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Backported in [#44380](https://github.com/ClickHouse/ClickHouse/issues/44380): In rare cases, we don't rebuild binaries, because another task with a similar prefix succeeded. E.g. `binary_darwin` didn't restart because `binary_darwin_aarch64`. [#44311](https://github.com/ClickHouse/ClickHouse/pull/44311) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Backported in [#44560](https://github.com/ClickHouse/ClickHouse/issues/44560): Retry the integration tests on compressing errors. [#44529](https://github.com/ClickHouse/ClickHouse/pull/44529) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).

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

* Backported in [#44756](https://github.com/ClickHouse/ClickHouse/issues/44756): [#40651](https://github.com/ClickHouse/ClickHouse/issues/40651) [#41404](https://github.com/ClickHouse/ClickHouse/issues/41404). [#42126](https://github.com/ClickHouse/ClickHouse/pull/42126) ([Alexander Gololobov](https://github.com/davenger)).
* Backported in [#43528](https://github.com/ClickHouse/ClickHouse/issues/43528): Fix incorrect UserTimeMicroseconds/SystemTimeMicroseconds accounting. [#42791](https://github.com/ClickHouse/ClickHouse/pull/42791) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#43620](https://github.com/ClickHouse/ClickHouse/issues/43620): Fix sumMap() for Nullable(Decimal()). [#43414](https://github.com/ClickHouse/ClickHouse/pull/43414) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#43981](https://github.com/ClickHouse/ClickHouse/issues/43981): fix s3Cluster function returns NOT_FOUND_COLUMN_IN_BLOCK error. Closes [#43534](https://github.com/ClickHouse/ClickHouse/issues/43534). [#43629](https://github.com/ClickHouse/ClickHouse/pull/43629) ([chen](https://github.com/xiedeyantu)).
* Backported in [#44009](https://github.com/ClickHouse/ClickHouse/issues/44009): - Fix using multipart upload for large S3 objects in AWS S3. [#43824](https://github.com/ClickHouse/ClickHouse/pull/43824) ([ianton-ru](https://github.com/ianton-ru)).
* Backported in [#43889](https://github.com/ClickHouse/ClickHouse/issues/43889): Fixed `ALTER ... RESET SETTING` with `ON CLUSTER`. It could be applied to one replica only. Fixes [#43843](https://github.com/ClickHouse/ClickHouse/issues/43843). [#43848](https://github.com/ClickHouse/ClickHouse/pull/43848) ([Elena Torró](https://github.com/elenatorro)).
* Backported in [#44147](https://github.com/ClickHouse/ClickHouse/issues/44147): Fix undefined behavior in the `quantiles` function, which might lead to uninitialized memory. Found by fuzzer. This closes [#44066](https://github.com/ClickHouse/ClickHouse/issues/44066). [#44067](https://github.com/ClickHouse/ClickHouse/pull/44067) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#44287](https://github.com/ClickHouse/ClickHouse/issues/44287): Prevent `ReadonlyReplica` metric from having negative values. [#44220](https://github.com/ClickHouse/ClickHouse/pull/44220) ([Antonio Andelic](https://github.com/antonio2368)).
* Backported in [#44677](https://github.com/ClickHouse/ClickHouse/issues/44677): Fix possible crash in case function `IN` with constant arguments was used as a constant argument together with `LowCardinality`. Fixes [#44221](https://github.com/ClickHouse/ClickHouse/issues/44221). [#44346](https://github.com/ClickHouse/ClickHouse/pull/44346) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).

#### NOT FOR CHANGELOG / INSIGNIFICANT

* Yet another fix for AggregateFunctionMinMaxAny [#43778](https://github.com/ClickHouse/ClickHouse/pull/43778) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Use only PRs to our repository in pr_info on push [#43895](https://github.com/ClickHouse/ClickHouse/pull/43895) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Fix tags workflow [#43942](https://github.com/ClickHouse/ClickHouse/pull/43942) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Assign release PRs [#44055](https://github.com/ClickHouse/ClickHouse/pull/44055) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Fix another bug in AggregateFunctionMinMaxAny [#44091](https://github.com/ClickHouse/ClickHouse/pull/44091) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Bump libdivide (to gain some new optimizations) [#44132](https://github.com/ClickHouse/ClickHouse/pull/44132) ([Azat Khuzhin](https://github.com/azat)).
* Add check for submodules sanity [#44386](https://github.com/ClickHouse/ClickHouse/pull/44386) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Implement a custom central checkout action [#44399](https://github.com/ClickHouse/ClickHouse/pull/44399) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
* Fix crash on delete from materialized view [#44705](https://github.com/ClickHouse/ClickHouse/pull/44705) ([Alexander Gololobov](https://github.com/davenger)).
* Do not check read result consistency when unwinding [#44956](https://github.com/ClickHouse/ClickHouse/pull/44956) ([Alexander Gololobov](https://github.com/davenger)).