Do not modify old urls?

[NeutronMG]

Hi, I have in mind to move from phpbb to Xenforo, but I have some doubts.

The old url of the themes created in my forum, are like this:

mysite.com/viewtopic.php?f=501&t=2288486

Then I ask if these are not modified to the style that Xenforo has, I say something cleaner:

misitio.com/foro1/any-url-clean-for-google

What I want to say is that I want to keep the old URLs in the old topics, and that the new topics have that style of Xenforo URL, cleaner or better for SEO.

It's possible?

I hope you can understand me, since I am using Google Translator.

 

[Paul B]

The URLs will change, that can't be avoided.

Redirection rules can be implemented though, to redirect traffic.

 

[NeutronMG]

I see, thanks for your help.