If you already own any UA hardware (even the old UAD-1 from 2005), you are eligible for the upgrade path.
For those who do not own UAD hardware, Universal Audio launched . This is a subscription service that allows you to run emulations of their most popular plugins natively on your computer's CPU, without Apollo hardware. While this doesn't unlock every single legacy title, it unlocks the vast majority of the modern library for a monthly fee. how to unlock all uad plugins exclusive