Remarks to Python 2.3

[Tim Peters]

[Markus Schaber, on 2.3 features]
> ...
> - Mutable sets support some in-place operations - should those, just as
> the in place operations on lists, like sort(), return None instead of
> the new list to make clear that they are in place operations and for the
> sake of consistency?

Yes, and that's already been done.  The docs may be lagging here:  be a
prince and submit a doc patch!