Regarding desktop, and even mobile. old.reddit.com still points to the previous version of the site. It's less than ideal for mobile but you can set this as the

Regarding desktop, and even mobile. old.reddit.com still points to the previous version of the site. It's less than ideal for mobile but you can set this as the default site in your account settings. It's under beta section, need to uncheck box for using the new reddit site.