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A general description is here.
‘apply()’ gains a ‘simplify’ argument to allow disabling of simplification of results.
(Not Windows.) ‘l10n_info()’ reports an additional element, the name of the encoding as reported by the OS (which may differ from the encoding part (if any) of the result from ‘Sys.getlocale("LC_CTYPE")’.
New function ‘charClass()’ in package ‘utils’ to query the wide-character classification functions in use (such as ‘iswprint’).