rversions (version 3.0.0)

resolve: Resolve an R version specification

Description

Resolve an R version specification

Usage

resolve(version = "release", platform = current_r_platform())

Value

A one row data frame, with columns version, date, nickname, semver, url, type, rtools_url (only for Windows).

Arguments

version

Symbolic version name to resolve. Possible values are

• release: the latest release version,

• devel: Development version of R.

• next: The next version of R. This is R-patched if there is no ongoing release process currently. Otherwise it may be R-alpha, R-beta, or R-rc or R-prerelease.

• oldrel: The previous version of R, not counting patch versions.

• oldrel/<n>: The n-th previous version of R, not counting patch versions.

• x.y.z: A specific R version, e.g. 4.5.1.

• x.y: The last patch release from a minor R branch, e.g. 4.4.

platform

Operating system version. Defaults to current_r_platform(). Possible values are:

• NA: to get information about platform-independent release archives.

• windows: x86_64 Windows.

• windows-x86_64: the same.

• windows-aarch64: aarch64 Windows.

• macos: arm64 macOS.

• macos-arm64: the same.

• macos-x86_64: x86_64 macOS.

• linux-<distro>-<release>: x86_64 Linux on the given distribution and release, e.g. linux-ubuntu-22.04.

• A target triplet of the form cpu-vendor-os-abi. On Linux it should also include the distribution name and release. See current_r_platform() for examples.

Details

resolve() caches its results in the current R session. To clear the cache restart R or set the R_VERSION_CACHE_TIMEOUT environment variable to 0.

Examples

resolve("release", "windows")
resolve("4.4", "windows-aarch64")
resolve("oldrel", "macos")
resolve("devel", "linux-gnu-ubuntu-24.04")
resolve("devel", "aarch64-unknown-linux-gnu-ubuntu-22.04")