The
final version of Form 1040X has not been released yet.
You will need to wait until the final version of the form
has been released before it will be ready to print and mail your amended return.
TurboTax works with the IRS and each state to get the forms
finalized and ready for mailing. As soon
as the final version has been released, the file by mail version will not have
DO NOT FILE printed on the forms.
See the information below for more information about Federal
form availability.
https://ttlc.intuit.com/replies/3319876