--- sidebar_position: 1 sidebar_label: 2022 --- # 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 or prestable 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)).