For customer environments, Stage+Production environment are auto-updated
with latest releases. For every release that Adobe pushes, There is a
strict testing regime where the release is tested on many customer
environments to avoid any regressions. These tests include functional,
UI variance and other forms of testing to have a confidence score which
help decide if the release is ready for customer consumption. On the top
of it, Customers can add Functional tests for their application and once
A...