I have two clients running older versions of Pro. We have no maintenance agreement in place with these clients, so no one has been updating their sites. They have now come to me wanting changes, but I have concerns about how outdated their versions of Pro are.
One site is running Pro version 2.4.6 and the other is running Pro version 3.2.3. What is going to happen if I jump from versions this old, to the latest version? I am very concerned about making a mess of these live websites.
Please advise.
Thank you.