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| r_oldrel | Version number of R-oldrel |
| r_release | Version number of R-release |
| r_release_macos | Latest R release with a macOS installer available for download |
| r_release_tarball | Latest release for which a source tarball is available for download |
| r_release_win | Latest R release with a Windows installer available for download |
| r_versions | Query R's past and present versions |