The H9 was released subsequent to my purchase of the SPACE pedal.
Is there something I now need to know about updating via H9? I don't have an H9, so I'm wondering if I'm missing something.
H9 has a lot more (optional) algorithms and can be updated over Bluetooth. So, it's a bigger deal.
SPACE is a great reverb – if you want more you should consider H9.
H9 is also smaller and lighter.