Release Notes - BlueStacks 4 for 64-bit Android
https://support.bluestacks.com/hc/en-us/articles/360049532111

BlueStacks 4.260.20.4001
https://cdn3.bluestacks.com/downloads/windows/bgp64/4.260.20.4001/e0e606adb61c294382ce82fc721d4e4f/x64/BlueStacks-Installer_4.260.20.4001_amd64_native.exe

オクトラとNieRのバグフィックス