I just added a new Domain. I am hosted under GoDaddy web-hosting. Previously I had two Drupal-7 Domains installed and running. I just now installed Drupal-8 on the new Domain. Drupal-8 wants to be updated. I went to puTTY and navigated to GoDaddy, logged-in, and navigated to the new Domain's sub-directory. Once there I typed in the Drush command: "drush up". Was greeted with the message "Drush 7.0.0 does not support Drupal 8."
Does this mean that I have to update Drush, and if I do so will I no longer be able to work on my Drupal-7 websites with the newer version of Drush? Or is it illegal to have two version of Drupal on the same GoDaddy hosting directory. There were no error messages when I installed Drupal-8 and the site seems to work, though it is totally undeveloped.
I will ask the GoDaddy people, but likely they won't know. If anyone out there in Drupal-land is also a GoDaddy customer, please let me know your experience.