Anyone having imagecreate errors after the upgrade. I didn't have a chance to test the site until today and noticed that imagecreate() doesn't work now. The error says it is an undefined function call.
I think I am having the same problem. I had to remove my contact form days ago. It just stop working for no reason. The Captcha image validation just won't show.
Your php configuration is basic... You have to request for the intermediate version for enabling the GD library... Request for the intermediate version from your account panel.