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A general description is here.
‘abbreviate()’ handles without warning non-ASCII input strings which require no abbreviation.
‘read.dcf()’ no longer has a limit of 8191 bytes per line. (Wish of PR#15250.)
‘formatC(x)’ no longer copies the class of ‘x’ to the result, to avoid misuse creating invalid objects as in PR#15303. A warning is given if a class is discarded.
If ‘x’ is a symbol, ‘is.vector(x, "name")’ now returns ‘TRUE’, since ‘"name"’ and ‘"symbol"’ should be synonyms. (Reported by Hervé Pagès.)
‘R CMD rtags’ works on platforms (such as OS X) with a XSI-conformant shell command ‘echo’. (PR#15231)