Log in to your Reallusion account and look under "Orders" for the NTG plugin bonus:

Click on "Download" and in the panel that opens you can download a version for iClone 8:

I don't know if other Python plugins have been updated yet, but you should check your account in both the Marketplace and Content Store to check.
Gerry
System: Win 10 Pro (21H2), Asus X99-E WS, CPU i7-5930K -3,5 GHz, 32 GB DDR4 2666-16 RAM, NVidia GTX 1080 Ti GPU - 11 GB VRAM(Driver Studio-536.99), Samsung 850 Pro 512 GB SSD, 6 TB HD storage.