The easiest way is to download and run the Composer-Setup.exe from the official site. It will automatically install the latest version and update your PATH so you can use the composer command anywhere.
If you already have Composer installed, you don't need to download a new file manually. Simply run: composer self-update --2 Use code with caution. composer 2.0 download
Composer 2.0 officially requires PHP 7.2.5 or higher . The easiest way is to download and run the Composer-Setup
If you are looking to download Composer 2.0 or upgrade your current setup, here is everything you need to know to get started. composer 2.0 download
Alternatively, macOS users can use : brew install composer . How to Upgrade from Version 1.x