When will Form 6251 be ready in TurboTax?

For several weeks my TurboTax software has been telling me that Form 6251 isn't ready yet.

 

The form is on the IRS website. What's the holdup?

 

When can I expect TurboTax to catch up with the IRS? This is annoying - I can't file my taxes because the software isn't up to date.