Jonathan Keane created ARROW-15481:
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Summary: [R] [CI] Add a crossbow job that mimics CRAN's old macOS
Key: ARROW-15481
URL: https://issues.apache.org/jira/browse/ARROW-15481
Project: Apache Arrow
Issue Type: Improvement
Components: Continuous Integration, R
Reporter: Jonathan Keane
Jeroen's autobrew does this using travis:
https://github.com/autobrew/homebrew-core/blob/high-sierra/.travis.yml
It would be good to test this on our own before the release process
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