The assistance of Yu Gong at a crucial step in porting R to MinGW-w64 is gratefully acknowledged, as well as help from Kai Tietz, the lead developer of the MinGW-w64 project and from Martin Storsjo. The toolsets used for 64-bit Windows from 2008 to 2022 were based on MinGW-w64. Additional build tools packaged by ‘MSYS2’ may be installed via a package manager ( pacman). The toolset also includes build tools from the the ‘MSYS2’ project. The toolset includes compilers (GCC version 12.2.0 with selected additional patches) and runtime libraries from the ‘MinGW-w64’ project and a number of pre-compiled static libraries and headers used by R and R packages, compiled by ‘MXE’ (M cross environment, with updates maintained by Tomas Kalibera). See Building R and packages for more details on how to use it. The binary distribution of R is currently built with tools from Rtools43 for Windows. When using other toolchains, makefiles of R and packages may need to be adapted. It is possible to use other 64-bit toolchains (including ‘MSYS2’) with UCRT support to build R, but this manual only documents that used for binary distributions of R 4.2.x and later. See the R Windows FAQ for more details on the binary installer and for information on use on older Windows systems. You will be asked to choose a language for installation: that choice applies to both installation and un-installation but not to running R itself. You can uninstall R from the Control Panel. Just double-click on the icon and follow the instructions. Installation is via the installer R-4.3.1-win.exe. DOS 8.3 names), then R must be installed in a path that does not contain spaces. If it does not also support conversion to short name equivalents (a.k.a. Your file system must allow long file names (as is likely except perhaps for some network-mounted systems). It runs on older versions of Windows, but normally with other charset encoding and may require manual installation of the Universal C Runtime (UCRT). R is best tested on current versions of Windows 10 and Windows Server 2022 with UTF-8 as the charset encoding. The bin/windows directory of a CRAN site contains binaries for a base distribution and a large number of add-on packages from CRAN to run on 64-bit Windows.
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