I didn't see anything special. The date is well before the final version but the build version is after. The final version, according to the TOSEC of https://archive.org/download/tosecdcus20190822 is 1.000
You can find it and download it on this page (with a NEW next to it)
https://en.sega-dreamcast-info-games-preservation.com/releases-exclusives-au-site
You can find it and download it on this page (with a NEW next to it)
https://en.sega-dreamcast-info-games-preservation.com/releases-exclusives-au-site
