instance method
Gem::UpdateSuggestion#update_suggestion
update_suggestion
lib/rubygems/update_suggestion.rb
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# File tmp/rubies/ruby-4.0.0/lib/rubygems/update_suggestion.rb, line 12
def update_suggestion
<<-MESSAGE
A new release of RubyGems is available: #{Gem.rubygems_version} → #{Gem.latest_rubygems_version}!
Run `gem update --system #{Gem.latest_rubygems_version}` to update your installation.
MESSAGE
end
Message to promote available RubyGems update with related gem update command.