Attentive package authors already noticed something new in their r-universe page over the past few weeks: R-universe has quietly started building and checking packages for Windows ARM64. https://ropensci.r-universe.dev/pdftools#checktable https://cran.r-universe.dev/dplyr#checktable https://bioc-release.r-universe.dev/S4Vectors#checktable R-universe has supported ARM64 on Linux and macOS for some time already, but not Windows. With this addition, packages are now built and checked on both x86_64 and ARM64 across all major operating systems, making the R ecosystem fully ARM ready.