Some of you may be aware that in November 2021 Drupal 7 was due to become "End of Life", however due to the Covid 19 crisis this has now been extended to November 28th 2022. See latest Drupal Blog - https://www.drupal.org/psa-2020-06-24
So what does this mean?
This just means that there is now longer before we have to update your sites from Drupal 7. However we are still working on the different scenarios so we can give you some options for your sites well before this date.