It means certs signed by Let's Encrypt will work just fine for people without any special setup. See https://helloworld.letsencrypt.org/ https://helloworld.lets

It means certs signed by Let's Encrypt will work just fine for people without any special setup. See https://helloworld.letsencrypt.org/ https://helloworld.letsencrypt.org/ for an example. This does not, however, mean that we can all start using Let's Encrypt. They're doing a slow roll-out before making certs generally available to the public. You can apply for the Beta at https://goo.gl/forms/kf0IGCeAk5 https://goo.gl/forms/kf0IGCeAk5, or wait until general availability later this year.