The website is not saying the IRS has not released the 1040X. It says that the TurboTax 1040X has not yet been finalized. The IRS has NOT released the Form 1040X instructions for tax year 2018, so TurboTax cannot finalized the form until the IRS has released the current instructions.
IRS Form 1040X instructions (2017) -<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/i1040x.pdf">https://www.irs.gov/pub/irs-pdf/i1040x.pdf</a>
