Why do you continue to make the experience difficult for your clients. You should ALWAYS default to off for new features and not force the features to clients, especially since you, that are managing the roll out, can't event give your clients a date for the change which is 'best practice' in any kind of standards. You can make it an option for clients that want to receive these updates automatically that they turn on auto updates, no different then Google. You then take another step and put the burden on our admins to constantly learn and have to do additional administrative steps to disable features. This also causes a black eye for the IT departments since they look silly not knowing when changes are specifically coming or how they will work specifically so it can be adequately communicated out. Please think outside the box and respect each client and how they need to operate their business....