I could have sworn that the 2024 program was/is available (and that we all have been using it for a while)

The dates at the top of the form should show year as 7/1/24 to 6/30/25 with the only fixed part of the date is the /24.

If you used Intuit to do a short yr 1/24 to 6/24 return then you will have issues with efile.