Supported R Version Window

Single source of truth for the oldest and newest R minor versions whose macOS toolchain macrtools supports.

Usage

minimum_supported_r_version()

maximum_supported_r_version()

Value

A "major.minor" version string.

Details

To validate support for a new R release, bump maximum_supported_r_version(). A new toolchain branch (e.g. in gfortran_install() or the installers.R helpers) is only required when the toolchain itself changes for that release; the range checks (is_r_version_at_least()) otherwise carry the newest tier forward automatically.