I'm not sure this is the forum to post this on, but my site keeps getting loads of spammers registering. I don't know if there's a way to stop this, like one of those image things with the numbers for when people register or something? Anyone have any suggestions on what I can do to control this situation?
No spammers at your website isn't a bug. I'll move this to general support for you. There you can fill out the support template, and we'll be happy to help once we have more information. There is a captcha (the number thing) built into the script already. Turn it on through your admin settings.
No this has nothing to do with updating to 3.5.2. Turn CAPTCHA on in your site settings under site settings. I also suggest you read the manual.
I couldn't find where CAPTCHA was located. I found it, so far it seems to have resolved the problem.