Something odd is going on here, and I suspect it is an issue with the name used.
But, since I did download, even the EXE file is named 2019.2.rc2.exe, so it could be that there was an accident in resending of an old announcement. But this did come from the NVAccess RSS feed.
Clarification will very likely be forthcoming shortly.
Brian - Windows 10 Pro, 64-Bit, Version 1909, Build 18363
Science has become just another voice in the room; it has lost its platform. Now, you simply declare your own truth.
~ Dr. Paul A. Offit, in New York Times article, How Anti-Vaccine Sentiment Took Hold in the United States, September 23, 2019