I picked up an old S2DT from a thrift store about a month ago. It came with 9.3.2 rather than 9.3.2b. (It still has the infamous "TV Guide" logo in the guide.) And... it still has 9.3.2.
I ran it without service at first, to see what that was like. It got ads right away.
But of course no guide data, and no software update. But even after I put service on it -- guide data, but no software update.