How to configure API versioning in nginx?

Question

Nginx

There is an API for the application. The current version is 1.1. The application accesses it at: site.com/1.1/users The next version needs to be transferred to another framework, the root document should change accordingly and access will be at
site.com/1.2/users
document root and rewrite? If you use just the form:

location /1.1/ {
    root /var/www/api/1.1;
    try_files $uri $uri/ index.php$is_args$args;
}

location /1.2/ {
    root /var/www/api/1.2;
    try_files $uri $uri/ index.php$is_args$args;
}

Then the errors FastCGI sent in stderr: "Primary script unknown" are poured into the log