It's all subscription based now but you can get it here. I upgraded to QB Enterprise 2024 because it includes the payroll service (although you still have to pay the monthly per employee fees) and I bought mine through Fourlane at a 20% discount (supposedly the discount is good going forward forever).
You can also get the desktop version here:
https://quickbooks.intuit.com/email/final-desktop-plus-sale/?cid=ipd_stopsell
