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A general description is here.
‘library()’ no longer checks packages with compiled code match ‘R.version$platform’. ‘loadNamespace()’ never has, and increasingly the ‘canonical name’ does not reflect the important characteristics of compiled code.
‘unzip()’ can list archives with comments and with spaces in file names even using an external ‘unzip’ command.
Calls like ‘formatC(*, zero.print = "< 0.001")’ no longer give an error and are further improved via new optional argument ‘replace.zero’. Reported by David Hugh-Jones.