# Determine the version of the CodeDeploy agent
<a name="codedeploy-agent-operations-version"></a>

You can determine the version of the CodeDeploy agent running on your instance in two ways.

First, for version 2.0.x and later, use the `codedeploy-agent --version` command on all platforms.

Second, you can view the version in a `.version` file on the instance. On Amazon Linux, RHEL, and Ubuntu Server the file is located at `/opt/codedeploy-agent/.version`, and on Windows Server at `C:\ProgramData\Amazon\CodeDeploy\.version`. The contents of the file differ by version:
+ For version 2.0.x and later, the file contains the bare version number, in the format `agent_version: 2.0.0`. This value matches the version that the agent reports to the CodeDeploy service.
+ For version 1.8.x and earlier, the version string uses the format `OFFICIAL_1.0.1.854_rpm` (or `_deb`, `_msi`).

**Topics**
+ [Determine the version on Amazon Linux or RHEL](#codedeploy-agent-operations-version-linux)
+ [Determine the version on Ubuntu Server](#codedeploy-agent-operations-version-ubuntu)
+ [Determine the version on Windows Server](#codedeploy-agent-operations-version-windows)

## Determine the version on Amazon Linux or RHEL
<a name="codedeploy-agent-operations-version-linux"></a>

Sign in to the instance and run the following command:

```
sudo /opt/codedeploy-agent/bin/codedeploy-agent --version
```

For versions earlier than 2.0.0, you can also use:

```
sudo yum info codedeploy-agent
```

## Determine the version on Ubuntu Server
<a name="codedeploy-agent-operations-version-ubuntu"></a>

Sign in to the instance and run the following command:

```
sudo /opt/codedeploy-agent/bin/codedeploy-agent --version
```

For versions earlier than 2.0.0, you can also use:

```
sudo dpkg -s codedeploy-agent
```

## Determine the version on Windows Server
<a name="codedeploy-agent-operations-version-windows"></a>

Sign in to the instance and run the following command:

```
& 'C:\ProgramData\Amazon\CodeDeploy\bin\codedeploy-agent.exe' --version
```