RubyGems 2.0.5 is a bug-fix release. To update to the latest RubyGems you can
run:
gem update --system
To install RubyGems by hand see the [Download RubyGems][download] page.
If you installed 2.0.1 and are unable to upgrade please follow the [how to
upgrade/downgrade RubyGems][upgrading] instructions.
Bug fixes:
- Fixed building of extensions that run ruby in their makefiles. Bug #589 by Zachary Salzbank.