System have .nimble at ~/ directory, But has error yet.
nimble v0.8.2
> nimble upgrade
Error: Specified directory does not contain a .nimble file.
That's not how you upgrade Nimble. Nimble does not support the upgrade command (https://github.com/nim-lang/nimble#nimble-usage).
You might be able to upgrade by running nimble install nimble.
It can upgrade on win.
Must 'ln' in bin dir if I use nimble install nimble.
Hope can use it on osx.