Thanks for adding this, I have been hoping this will land.

Two questions:

• will gh -v expected to also work?
• should a note be made in the gh - help page about how to check the version?

Idea: add in a link to the release notes like gh --version => "gh version VERSION (DATE) (LINK)"

• will gh -v expected to also work?

It doesn't work right now, and maybe we could make it work (not sure if our CLI framework enables that), but I don't feel like it's strictly needed. Because sometimes -v means "verbose" or another flag, commands usually settle for long-form --version or version to display a version. Git, for instance, doesn't support -v.

• should a note be made in the gh - help page about how to check the version?

That's a good point! Our CLI framework ensures that it's already there:

Usage:
  gh [command]

Available Commands:
  help        Help about any command
  pr          Work with pull requests

Flags:
  -B, --current-branch string   current git branch
  -h, --help                    help for gh
  -R, --repo string             current GitHub repository
      --version                 version for gh