On 13 apr. 2011, at 00:07, Pontus Lurcock <pont@talvi.net> wrote:

> On Mon 11 Apr 2011, Khaled Hosny wrote:
> 
> ... 
>> (\addff is meant for temporally applying font features not the other way
>> around, but I think it should work this way too, so may be something
>> is broken)
> 
> \addff{oldstyle} works with my 2011.02.25 ConTeXt, so evidently it's
> quite a recent change.
> 
\addff is for adding some feature to an already selected font. It fails in the latest beta's because fonts are no longer preloaded immediately, but only after \starttext (which is a good thing)

Best wishes,
Taco