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A general description is here.
‘installed.packages()’ on Windows would fail when ‘file.mtime()’ (?)
returned NA.
‘parse()’ no longer gives spurious warnings when extracting srcrefs from a file not encoded in the current locale.
This was seen from ‘R CMD check’ with ‘inst/doc/*.R’ files, and ‘check’ has some additional protection for such files.
‘fourfoldplot()’ could encounter integer overflow when calculating the odds ratio. (PR#17286)
‘readRDS(url(....))’ now works.
‘file.mtime()’ no longer returns NA on Windows when the file or directory is being used by another process. This affected ‘installed.packages()’, which is now protected against this.
‘aggregate(<data.frame>, drop = FALSE)’ now also works in case of near-equal numbers in ‘by’. (PR#16918)