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The ‘make’ macro ‘AWK’ which used to be made available to files such as ‘src/Makefile’ is no longer set. [Announced and will be implemented once packages are updated.]
‘match.arg(arg)’ (the one-argument case) is faster; so is ‘sort.int()’. (PR#16640)
The ‘format’ method for ‘object_size’ objects now also accepts “binary” units (and e.g. Tb). (PR#16649)
Profiling now records calls of the form ‘foo::bar’ and some similar cases directly rather than as calls to ‘<Anonymous>’. Contributed by Winston Chang.
The ‘make’ macro @codeAWK which is long unused by R itself but recorded in file ‘etc/Makeconf’ is deprecated and will be removed in R 3.3.0.