This guide assumes you have access to a command-line environment or shell such as bash, zsh, etc. or Linux or Mac OS X or PowerShell on Microsoft Windows. 
OpenMetadata is built using Java, DropWizard, and Jetty.
Type the following command to verify that you have a supported version of the Java runtime installed.
```
java --version
```
To install Java or upgrade to Java 11 or greater, see the instructions for your operating system at [How do I install Java?](https://java.com/en/download/help/download\_options.html#mac)
### MySQL (version 8.0.0 or greater)
To install MySQL see the instructions for your operating system (OS) at [Installing and Upgrading MySQL](https://dev.mysql.com/doc/mysql-installation-excerpt/8.0/en/installing.html) or visit one of the following OS-specific guides.
* [Installing MySQL on Linux](https://dev.mysql.com/doc/mysql-installation-excerpt/8.0/en/linux-installation.html)
* [Installing MySQL on Microsoft Windows](https://dev.mysql.com/doc/mysql-installation-excerpt/8.0/en/windows-installation.html)
* [Installing MySQL on macOS](https://dev.mysql.com/doc/mysql-installation-excerpt/8.0/en/macos-installation.html)
### Elasticsearch (version 7.0.0 or greater)
To install or upgrade Elasticsearch to a supported version please see the instructions for your operating system at [Installing Elasticsearch](https://www.elastic.co/guide/en/elasticsearch/reference/current/install-elasticsearch.html).
### Airflow (version 2.0.0 or greater) or other workflow schedulers
OpenMetadata performs metadata ingestion using ingestion connectors designed to run in Airflow or another workflow scheduler. 
To install Airflow, please see the [Airflow Installation](https://airflow.apache.org/docs/apache-airflow/stable/installation/index.html) guide.
Visit the [releases page](https://github.com/open-metadata/OpenMetadata/releases) and download the latest binary release. Release binaries follow the naming convention of `openmetadata-x.y.z.tar.gz`. Where `x`, `y`, and `z` represent the major, minor, and patch release numbers.
For example, the release for version 0.6 is found in the Assets section at the link highlighted in the figure below.
One or more OpenMetadata instances can be put behind a load balancer for reverse proxying, in that case, an appropriate OpenMetdata URL must be mentioned in the load balancer's configuration file.