- CHANGES IN R 4.3.3:
  NEW FEATURES:
    * iconv() now fixes up variant encoding names such as "utf8"
      case-insensitively.
  DEPRECATED AND DEFUNCT:
    * The legacy encoding = "MacRoman" is deprecated in pdf() and
      postscript(): support was incomplete in earlier versions of R.
  BUG FIXES:
    * Arguments are now properly forwarded to methods on S4 generics
      with ... in the middle of their formal arguments. This was broken
      for the case when a method introduced an argument but did not
      include ... in its own formals. Thanks to Herv'e Pag`es for the
      report PR#18538.
    * Some invalid file arguments to pictex(), postscript() and xfig()
      opened a file called NA rather than throw an error.  These
      included postscript(NULL) (which some people expected to work
      like pdf(NULL)).
    * Passing filename = NA to svg(), cairo_pdf(), cairo_ps() or the
      Cairo-based bitmap devices opened a file called NA: it now throws
      an error.
    * quartz(file = NA) opened a file called NA, including when used as
      a Quartz-based bitmap device.  It now gives an error.
    * rank(<long vector>) now works, fixing PR#18617, thanks to Ilia
      Kats.
    * seq.int() did not adequately check its length.out argument.
    * match(<POSIXct>, .) is correct again for differing time zones,
      ditto for "POSIXlt", fixing PR#18618 reported by Bastian Klein.
    * drop.terms(*, dropx = <0-length>) now works, fixing PR#18563 as
      proposed by Mikael Jagan.
    * drop.terms(*) keeps + offset(.) terms when it should, PR#18565,

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