Why does turbo tax say tax form 4684 is not available until february 24th when i looked on the irs website and the form is current and available now?

Turbo tax said form 4684 page 1 is not available until 2/24/22 when in fact it's on the irs.gov website available and in the current version needed.  how can it be there but turbo tax said it's not available?