KevC wrote: ↑
Mon Mar 13, 2017 9:01 pm
2) Recaptcha comes with 3.2. I'm not sure there's an extension for 3.1.
There's an old one over here: viewtopic.php?f=501&t=2295956#p13945006
But, like KevC said, it's incorporated in phpBB 3.2, so it would be easier and safer to use that version.