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sidebar_position: 1
sidebar_label: 2023
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# 2023 Changelog

### ClickHouse release v22.12.3.5-stable (893de538f02) FIXME as compared to v22.12.2.25-stable (c790cfd4465)

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

* Backported in [#45086](https://github.com/ClickHouse/ClickHouse/issues/45086): fix alter table ttl error when wide part has light weight delete mask. [#44959](https://github.com/ClickHouse/ClickHouse/pull/44959) ([Mingliang Pan](https://github.com/liangliangpan)).

#### NOT FOR CHANGELOG / INSIGNIFICANT

* Do not check read result consistency when unwinding [#44956](https://github.com/ClickHouse/ClickHouse/pull/44956) ([Alexander Gololobov](https://github.com/davenger)).