The 2.0.18 upgrade is working fine, but I am having issues when going live with the reCAPTCHA integration.
I have restored the forums with 2.0.18 update, but not reCAPTCHA, in place. I'm currently working on the reCAPTCHA issue - at first I wasn't able to reproduce it on my local setup, but I've managed to now, so don't need to be able to use the live site to test. The site will go down again to launch this once it's ready, I'll give some notice first.