| available | Available R Builds |
| current_r_platform | Current R platform |
| linux_distros | Return information about Posit's (and some other) R builds for Linux |
| resolve | Resolve an R version specification |
| rtools_versions | List Rtools versions |
| 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 |