[ci] test against R 4.2 for macOS and Linux CI jobs #5484
Merged
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Contributes to #4881.
In #5274, I've been working on upgrading R to v 4.2.x in this project's CI jobs. Linux and macOS are working fine there, but adding Windows support has been challenging.
This PR proposes at least upgrading the Linux and macOS CI jobs, so we can start getting more test coverage of
{lightgbm}
on R 4.2.x. If this is merged, then I'll repurpose #5274 to focus only on adding the remaining Windows support.Notes for Reviewers
As of this writing, the latest version of R is v4.2.1 (https://cran.r-project.org/src/base/R-4/).