Where I can chang the Calidation Code format?

[Cixi]

Hello.
In the old 2.0 RC1 version I could choose which kind of Validation Code upone registration of a new user I should use.
Now I can find anymore this setting in the Admin Panel.
I got the T_else error and I fixed as specified in the sticky topic.
But I still can't change the validation code format.
Any help? Please.
Thank You.

[JBlaze]

Admin -> Configuration -> Security

Or you can also install reCAPTCHA for SMF which is a differenct verification as well.

[Cixi]

Thank You