From an email by Jens via Marshall:

In C++03, those two calls were specified as: (Section 3.7.4)
void operator delete(void*) throw();
void operator delete throw();

In n3225, this was changed to:
void operator delete(void*) noexcept;
void operator delete noexcept;
with the appropriate editing marks striking out the “throw()” and adding the “noexcept”

In n3242, however, they appear as:
void operator delete(void*);
void operator delete;
and there are no editing marks - even though other changes in that document are so marked.

Also, there is no mention of this change in the editor’s report (n3243)
[ though issue GB59 touches on this - but for chapter 18, not 3 ]