RubyGems is a package management framework for Ruby. New versions of Ruby Gems are frequently released to solve bugs and vulnerabilities introduced by older versions.
A package manager is a tool that allows for the easy and automated installation, update, and configuration of a software or tool.
To upgrade to the latest version of RubyGems, use the following command in the console:
$ gem update --system
To install a particular Gem, use the following command:
gem install <gemname>
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