2013-04-02T14:57 tim@timtimeonline.com:
> [...] One of the few arguments I have seen for maintaining the status quo indefinitely is poorly-written legacy code.  If that is truly our concern (and I hope it isn't), perhaps we should simply announce such a change well before we actually make it.

Very well before.

I betcha there are some thermostats that might get bit, and possibly some medical appliances too.

Or industrial control.

The applications of computers with the most horrific downside risk are, inexplicably, not renowned for the best design expertise at controlling against surprises.