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A general description is here.
‘R CMD check’ can now scan package functions for bogus ‘return’ statements, which were possibly intended as ‘return()’ calls (wish of PR#17180, patch by Sebastian Meyer). This check can be activated via the new environment variable ‘_R_CHECK_BOGUS_RETURN_’, true for ‘--as-cran’.
‘Vectorize()’'s result function's environment no longer keeps unneeded objects.
Libcurl-based internet access, including ‘curlGetHeaders()’, was not respecting the ‘"timeout"’ option.
‘quantile(x, pr)’ works more consistently for ‘pr’ values slightly outside [0,1], thanks to Suharto Anggono's PR#17891.
Further, ‘quantile(x, prN, names=FALSE)’ now works even when ‘prN’ contains ‘NA’s, thanks to Anggono's PR#17892.