If your EcoStruxure IT Gateway software is older than 1.4.0, you must download and install version 1.5.2 before you update to the latest Gateway version.
If your Gateway software is older than version 1.4.0, the installer will direct you to download and install Gateway version 1.5.2. Once you log in, you'll see a message that an update is available. You can then update your Gateway to the latest version.
If your Gateway version is 1.4.0 or newer, you can update to the latest version directly.
Log in to your EcoStruxure IT account. Go to Administration > Gateways. Click Update on the gateway tile.