Best bet here is to use Homebrew to install the latest version.

brew install nano

This will install nano to /usr/local/bin/nano.

Next you will need to modify your .zshrc or .bash_profile (depending on what your shell is) to make sure you use this rather than the native variant. Add the line:

alias nano="/usr/local/bin/nano"

(Restart your Terminal app for this to take effect.)

Best bet here is to use Homebrew to install the latest version.

brew install nano

This will install nano to /usr/local/bin/nano.

Next you will need to modify your .zshrc or .bash_profile (depending on what your shell is) to make sure you use this rather than the native variant. Add the line:

alias nano="$(brew --prefix)/bin/nano"

(Restart your Terminal app for this to take effect.)