Drupal version 8 was released in November of 2015, but developers knew it was coming for several years prior

Drupal 8 was a major rebuilding of the core engine and core APIs (Application Programming Interfaces)

This meant that all existing modules and themes for Drupal 7 would need a lot of updating to work with Drupal 8

So, while I had a lot of ideas for programatically improving site accessiblity, I put a lot off until we could move to Drupal 8

First sites in Drupal 8 were launched in March of 2017, and over this past summer, I got all six school websites upgraded.