There have been a huge number of changes, including the requirement that people turn up for their tests, turn up for the ceremonies, and not have the option of being no-shows.
We have given the option to citizenship applicants to retake the test when they don't meet the necessary requirement, but they can't take it over and over again forever.
We've also come to grips with the residency requirement. We distributed residency questionnaires when it was necessary to uncover those cases where people have simply not been here. Now we are distributing residency questionnaires to a much smaller number of citizenship applicants, and that is giving us faster processing times.