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Writing to a clipboard connection on Windows works again, fixing a regression in R 4.2.0 (PR#18332). Re-using a closed clipboard connection on Windows no longer issues a spurious warning about an ignored encoding argument.
‘getlocale’ on Windows no longer attempts to query an unsupported category from the OS, even when requested at R level, which may cause crashes when R 4.2.0 (which uses UCRT) is embedded (reported by Kevin Ushey).
Setting environment variable ‘_R_CHECK_RD_VALIDATE_RD2HTML_’ to false value will override ‘R CMD check --as-cran’ and turn off HTML validation. This provides a way to circumvent a problematic ‘tidy’ such as the 2006 version that ships with macOS.