# Security Policy

## Supported Versions

The following versions of ClickHouse server are
currently being supported with security updates:

| Version | Supported          |
| ------- | ------------------ |
| 1.x   | :x: |
| 18.x   | :x:                |
| 19.x   | :x:                |
| 20.1   | :x: |
| 20.3   | :white_check_mark: |
| 20.4   | :x: |
| 20.5   | :x: |
| 20.6   | :x: |
| 20.7   | :x: |
| 20.8   | :white_check_mark: |
| 20.9   | :x: |
| 20.10  | :x: |
| 20.11  | :white_check_mark: |
| 20.12  | :white_check_mark: |
| 21.1   | :white_check_mark: |

## Reporting a Vulnerability

To report a potential vulnerability in ClickHouse please send the details about it to [clickhouse-feedback@yandex-team.com](mailto:clickhouse-feedback@yandex-team.com).