Windows XP and Vista Long Term Support Plan

[Chris Peterson]

On 10/13/2016 12:37 PM, L. David Baron wrote:
> My argument is that it may well be less effort to continue
> supporting XP and Vista on mozilla-central for another two years
> (followed by ESR for a bit) than to support ESR52 for three years.
>
> So if we're actually talking about possibly maintaining ESR52 for
> three years, I think we'd be better off not doing this, and
> continuing to support XP and Vista in our non-ESR releases.

Another option is to continue supporting XP/Vista in mozilla-central, 
but treat XP/Vista as its own platform. We can create separate XP/Vista 
and Win 7+ builds that #ifdef features we don't want to support on 
XP/Vista at compile-time. This would open the option to use different 
compilers or compiler options for Win7+ builds.