First up: You don't really need these tools from Win8 onwards, as every driver should get automatically get installed. Just download the newest GPU driver if it's a gaming PC and you're done.
That said, this seems to be a case similar to uBlock and uBlock Origin: SDI is the "original" version and the last update was in 2017. SDI Origin was split off some time in 2016 (due to some controversy?) and is maintained to this day.