It is not every day that a venerable and wide-ranging standard such as IEEE-754 gets an update!  IEEE 754 dates from 1985 (that was the year it was approved, the actual work started years before).  Wikipedia has a nice summary of the changes.

Of course now inquiring minds want to know: will Maple 13 by IEEE-754-2008 compliant? [For all I know, it might already be most of the way there, with only minor tweaks necessary].