Previous Tax Years Keep Changing

Please find a way to lock changes after a certain tax year. I’ve already used this tool to file my 2021 tax returns yet every few months some feature changes causes a change in the old tax year and I have to download all the forms, figure out what changed, and stress over whether or not the change is “correct” and I have to amend my return or fix it so it matches whatever input I previously had. It’s an incredibly frustrating experience and makes the tool very hard to use.