The older 1.x clients still continued to function and generate stats just fine, but that’s going to change on 1 December 2017. That’s the date when we’re going to be disabling the access to the website for 1.x clients.
The reasoning behind this is pretty simple;
It’s been 5 years since we moved on from 1.x.
Technology keeps evolving and the website platform is evolved to where it has a modern backend and the functionality that’s needed for 1.x communication is not compatible with the used software anymore. We’d need to rewrite the entire 1.x communication scripts to match.
It’s been 5 years.
There are not a lot of people still actually using a 1.x version, but they will get a direct email to remind them to upgrade to 2.x to make sure they get surprised and so they can migrate.