There is no demo for this which you did say would  be in the next version.

How do I use this component as nothing is displayed at run time?



ReCaptcha v3 is the latest version of Google that becomes invisible when Google assumes the visitor is not a bot. In the previous version of Google ReCaptcha it would always display. 

The OnVerified event is triggered if the user is considered a real bot.
When Google judges it is unsure whether it is a bot, it will display.


Thanks for the explanation, I didn't realise that. Makes sense from the Google point of view but makes it impossible to test.

Any chance of also supporting version 2?



Not sure, depends on whether Google will keep v2 available as alternative. We'll need to try to find out what Google plans are with v2.

Thanks, appreciated as always.