Why there’s no new updates in my iphone?

iPhone 6 and earlier have topped out, and are not receiving iOS updates past iOS 12 or earlier.

If you have a newer iPhone, check for and remove any beta profile, and try again.

Or if you have an add-on VPN client, discontinue and remove that, and try again.

Updates require Wi-Fi connections, or a computer, or a 5G-capable iPhone with a 5G cellular connection, as well as sufficient free local storage.

****~ What type of iPhone do you have ? Current iOS? What happens when you try to update? Do you use a VPN? Are you connected to WiFi? Please understand the more pertinent information you give us the better we may begin to assist you. Take a look here:

Identify your iPhone model - Apple Support

~Katana-San~