Ok, installed 4.8.2 - but now, I have an "UNREGISTERED" version. That is a bit frustrating, as I have just bought it on the Apple App Store at full price today - and was sorely missing the Subtitle function .
Any ideas?

Hello,
sorry, the link https://get.filebot.net/filebot/latest/FileBot_Subtitles.pkg just gives me a "NOT FOUND".

This is what I get when using the terminal command line as written above:
sh -xu <<< "$(curl -fsSL https://raw.githubusercontent.com/filebot/plugins/master/installer/subtitles.sh ...