> If the producer is a third party provided script/app you don't have the source code for, I believe you still have the same breakage problem There are number

> If the producer is a third party provided script/app you don't have the source code for, I believe you still have the same breakage problem There are number of ways to prevent that in PowerShell, and by default you usually have to do nothing. But if we imagine that vendor removes some param you relied on in newer versions, you can make it work with old scripts using it by providing so called "proxy function" that returns it back by just adding new stuff on top of existing stuff of underlying function. The similar can be done with objects and properties.