After a while, but probably more than a month, you would need to refresh your keys as the ones that your system trusts would not match the signatures on what is being downloaded from the repo and you would be getting signature errors.
You’d just install archlinux-keyring first, and then do a full system upgrade. If that didn’t work you could refresh the keys with pacman-key (pacman-key --refresh-keys) and then install archlinux-keyring->upgrade.
Your system would work fine without updating, though I guess eventually a new version of HTML will come out in a decade or so and your browser won’t support it… but until then you’d be fine(security issues aside).
After a while, but probably more than a month, you would need to refresh your keys as the ones that your system trusts would not match the signatures on what is being downloaded from the repo and you would be getting signature errors.
You’d just install archlinux-keyring first, and then do a full system upgrade. If that didn’t work you could refresh the keys with pacman-key (pacman-key --refresh-keys) and then install archlinux-keyring->upgrade.
Your system would work fine without updating, though I guess eventually a new version of HTML will come out in a decade or so and your browser won’t support it… but until then you’d be fine(security issues aside).