- local R installation (Windows 10 x64), R 3.6.0
- Ubuntu 16.04.6 LTS (on travis-ci), R oldrel
- Ubuntu 16.04.6 LTS (on travis-ci), R devel
- Ubuntu 16.04.6 LTS (on travis-ci), R release
- Windows Server x64 (build 17763) (on Appveyor), R release
- Windows Server x64 (build 17763) (on Appveyor), R devel
- macOS-latest (on Github Actions), R devel
- macOS-latest (on Github Actions), R release
- Windows Latest (on Github Actions), R release
- Ubuntu Latest (on Github Actions), R release
- Windows x86_64-w64-mingw32 (on win-builder), R devel
- Windows Server 2008 R2 SP1 (on R-Hub), R devel
- Debian Linux (on R-Hub), R devel
- Ubuntu Linux 16.04 (on R-Hub), R release
- Fedora Linux (on R-Hub), R devel
There were no NOTEs, ERRORs or WARNINGs