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sidebar_label: 2022
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# 2022 Changelog

### ClickHouse release v21.11.9.1-stable FIXME as compared to v21.11.8.4-stable

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

* Backported in [#33181](https://github.com/ClickHouse/ClickHouse/issues/33181): Server might fail to start if database with `MySQL` engine cannot connect to MySQL server, it's fixed. Fixes [#14441](https://github.com/ClickHouse/ClickHouse/issues/14441). [#32802](https://github.com/ClickHouse/ClickHouse/pull/32802) ([Alexander Tokmakov](https://github.com/tavplubix)).

#### NOT FOR CHANGELOG / INSIGNIFICANT

* Merge [#33024](https://github.com/ClickHouse/ClickHouse/issues/33024) [#33061](https://github.com/ClickHouse/ClickHouse/pull/33061) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Merge [#33022](https://github.com/ClickHouse/ClickHouse/issues/33022) [#33062](https://github.com/ClickHouse/ClickHouse/pull/33062) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Merge [#33050](https://github.com/ClickHouse/ClickHouse/issues/33050) [#33065](https://github.com/ClickHouse/ClickHouse/pull/33065) ([Alexey Milovidov](https://github.com/alexey-milovidov)).