Hi, I want to make a all-apps signature. I have 2 computers, one of them is compatible with the latest versions of the softwares, but the other one, older, isn't. I have the old apps installed on it, with a serial # that expired. Will I be able to use my new serial numbers on the old apps? Thanks!
Creative Cloud apps are subscription based and not serial no based. As long as you have a valid subscription you can use the older versions of the app. Though do mind that Adobe does not recommend using app versions other than the recent two.