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sidebar_position: 1
sidebar_label: 2022
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# 2022 Changelog

### ClickHouse release v22.8.3.13-lts (6a15b73faea) FIXME as compared to v22.8.2.11-lts (b4ed6d744ff)

#### Improvement
* Backported in [#40550](https://github.com/ClickHouse/ClickHouse/issues/40550): Improve schema inference cache, respect format settings that can change the schema. [#40414](https://github.com/ClickHouse/ClickHouse/pull/40414) ([Kruglov Pavel](https://github.com/Avogar)).

#### Build/Testing/Packaging Improvement
* Backported in [#40694](https://github.com/ClickHouse/ClickHouse/issues/40694): Fix TGZ packages. [#40681](https://github.com/ClickHouse/ClickHouse/pull/40681) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).

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

* Backported in [#40451](https://github.com/ClickHouse/ClickHouse/issues/40451): Fix rare bug with column TTL for MergeTree engines family: In case of repeated vertical merge the error `Cannot unlink file ColumnName.bin ... No such file or directory.` could happen. [#40346](https://github.com/ClickHouse/ClickHouse/pull/40346) ([alesapin](https://github.com/alesapin)).
* Backported in [#40533](https://github.com/ClickHouse/ClickHouse/issues/40533): Proxy resolver stop on first successful request to endpoint. [#40353](https://github.com/ClickHouse/ClickHouse/pull/40353) ([Maksim Kita](https://github.com/kitaisreal)).
* Backported in [#40625](https://github.com/ClickHouse/ClickHouse/issues/40625): Fix potential dataloss due to a bug in AWS SDK (https://github.com/aws/aws-sdk-cpp/issues/658). Bug can be triggered only when clickhouse is used over S3. [#40506](https://github.com/ClickHouse/ClickHouse/pull/40506) ([alesapin](https://github.com/alesapin)).

#### NOT FOR CHANGELOG / INSIGNIFICANT

* DNSResolver remove AI_V4MAPPED, AI_ALL hints [#40502](https://github.com/ClickHouse/ClickHouse/pull/40502) ([Maksim Kita](https://github.com/kitaisreal)).
