TurboTax just released a Mac and Windows desktop update at about 1PM PST today (2/15) that has the final e-file-able 8606 form. The online versions will probably be updated during a low traffic period - probably tonight about 8:30 PM PST I have been told.
[However, the "Relief for hurricane distributions" from retirement plans is not included in this update. I believe that requires related form 8915 that has a 2/23/18 target date.]
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**