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sidebar_position: 1
sidebar_label: 2023
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# 2023 Changelog

### ClickHouse release v23.3.5.9-lts (f5fbc2fd2b3) FIXME as compared to v23.3.4.17-lts (2c99b73ff40)

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

* Fix broken index analysis when binary operator contains a null constant argument [#50177](https://github.com/ClickHouse/ClickHouse/pull/50177) ([Amos Bird](https://github.com/amosbird)).
* Cleanup moving parts [#50489](https://github.com/ClickHouse/ClickHouse/pull/50489) ([vdimir](https://github.com/vdimir)).
* Do not apply projection if read-in-order was enabled. [#50923](https://github.com/ClickHouse/ClickHouse/pull/50923) ([Nikolai Kochetov](https://github.com/KochetovNicolai)).

#### NOT FOR CHANGELOG / INSIGNIFICANT

* Increase max array size in group bitmap [#50620](https://github.com/ClickHouse/ClickHouse/pull/50620) ([Kruglov Pavel](https://github.com/Avogar)).

