Hi,
is there something similar for 4.2.3 ?

You could try:

Show First Post Only

and exclude all usergroups except "Unregistered / Not Logged In". :)

I tried it, but it doesn't work. I can see the message "All Posts Except The First and Yours Are Hidden From View" , but scrolling down i can see all the posts without login. I tried both setting "all" in the active forum option, and selecting specific forum. It doesn't work.. :(

Are you using the "postbit" template, and not the "postbit_legacy" template? I meant to add support for the "postbit" template, but forgot...I will do that today. :)

I tried with both templates, no way. All posts showed to unregistered users.

Found and installed this . It works fine . Anyway thank you very much.