I changed my domain to a new domain and anew custom permalinks. I performed the redirect and every URL is redirected properly to the new domain URL!
Now I have many backlinks from the old domain that are under my controls and others that other users share it over the internet.
My question is should I update all backlinks that I can control with the new URL structure or doesn't matter because the old URL already redirects properly to the right URL! so if someone clicks on the old backlink it will redirects properly!