iOS so far doesn't start to remove content until the System needs to provide more space than what is available. When that point is reached, in the past the use

iOS so far doesn't start to remove content until the System needs to provide more space than what is available. When that point is reached, in the past the user would have been required to go in an delete apps they don't need (or opt to not install the new app because they think they need all of their existing ones). Now, the system can start to remove some of the mostly unused data in other apps to make room. I really believe this to be an improvement compared to the past.