Hi all. I am a long time looking for the forums, the answer to a question about repositories, I have connected these repositories
deb http://packages.linuxmint.com/ debian main upstream import backport romeo
deb http://debian.linuxmint.com/latest testing main contrib non-free
deb http://debian.linuxmint.com/latest/security testing/updates main contrib non-free
deb http://debian.linuxmint.com/latest/multimedia testing main non-free
but for some reason there are no updates, please tell me what else is needed to connect, that would normally receive updates.
thank you all for your help and answers