install laravel specific version code example
Example 1: install particular version of laravel
composer create-project laravel/laravel="5.1.*" myProject
Example 2: install laravel specific version using composer
composer create-project --prefer-dist laravel/laravel blog "6.*"
Example 3: laravel installer version
Laravel Installer Version Check
laravel -version
ex. laravel -version
Result : Laravel Installer 4.1.1