'New & Updated topics' displays only to authenticated user

You have to be more descriptive. What is actual problem?

I think his/her request was obvious, (s)he wants to display the 'New & Updated topics' tab (see attached img) for everyone (ANONYMOUS USER), however, that tab only shown up for AUTHENTICATED USER, and he couldn't find a way to configure it because the admin section doesn't provide an option for him to do that.

This isn't "needs review" because there is no patch. Tentatively putting it to active as more info was provided. I'll leave it up to troky if it was enough info. :)

I'm pretty rusty at this but I'm not sure what the user is trying to do is even possible. How is the view supposed to know if something is new for an anonymous user? There would be no record in the history table.

Michelle said everything. There are no records in history table for anonymous users hence no content can be marked as new/updated for anonymous users.
Thanks Michelle. Nice to see you around :)

I still keep an eye on the queue but the things I can answer are getting fewer and fewer the longer my head is out of the code, unfortunately. :(