A lot of the changes are not ones that would make sense in a list. What TT will tell you is if the version you have includes forms that have not yet been approved for filing. It also won't let you file with forms that haven't been approved. No update should ever change your tax data, which is kept separately, and every update should correctly report your tax liability :-).
And don't blame me, I'm not an employee, just a fellow user 🙂