There is no download page for Zidoo NEO Alpha but I guess the former beta firmware v6.7.42 has also changed to stable.
Zidoo NEO S stable firmware v6.7.42
Former beta firmware v6.7.42 for model Zidoo NEO S has been released as stable on the download page.
Zidoo NEO X stable firmware v6.7.42
Former beta firmware v6.7.42 for model Zidoo NEO X has been released as stable on the download page.
Zidoo UHD3000 stable firmware v6.4.42(_G)
Former beta firmware v6.4.42(_G) for model Zidoo UHD3000 has been released as stable on the download page.
Zidoo Z1000 Pro stable firmware v6.4.42(_G)
Former beta firmware v6.4.42(_G) for model Zidoo Z1000 Pro has been released as stable on the download page.
Zidoo Z10 Pro stable firmware v6.4.42(_G)
Former beta firmware v6.4.42(_G) for model Zidoo Z10 Pro has been released as stable on the download page.
Zidoo Z9X stable firmware v6.4.42(_G)
Former beta firmware v6.4.42(_G) for model Zidoo 
has been released as stable on the download page.
PlayerFab 7 (former DVDFab Player) 7.0.2.9 (32/64 bit)
Play any discs (including 4K UHD), local videos, and streaming videos. Organize your movie/music library.
https://www.dvdfab.cn/playerfab.htm
MKVToolNix v72.0.0 “Minuano (Six-eight)”
MKVToolNix is a set of tools to create, alter and inspect Matroska files under Linux, other Unices and Windows.
https://mkvtoolnix.download/index.html
