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You can find the docs for the current version here.
Tenant Redirect
To enable this feature, uncomment the
Stancl\Tenancy\Features\TenantRedirect::classline in yourtenancy.featuresconfig.
A customer has signed up on your website, you have created a new tenant and now you want to redirect the customer to their website. You can use the tenant() method on Redirect, like this:
// tenant sign up controller
return redirect()->route('dashboard')->tenant($domain);