gitlab-org--gitlab-foss/config/initializers/5_backend.rb

unless Rails.env.test?
  required_version = Gitlab::VersionInfo.parse(Gitlab::Shell.version_required)
  current_version = Gitlab::VersionInfo.parse(Gitlab::Shell.version)

  unless current_version.valid? && required_version <= current_version
    warn "WARNING: This version of GitLab depends on gitlab-shell #{required_version}, but you're running #{current_version}. Please update gitlab-shell."
  end
end