>> Yes, for example in my package's version 1.7 I plan to use
>> `fontspec-patched.sty’.
>
> Hang on a sec — how urgent is this? This seems like a fairly drastic
> step; there’s no problem for me to make a fontspec release on
> demand…
I don't consider it a drastic step but rather natural – I use other
packages that need to be patched because the upstream versions have
bugs (longtable[1]) or missing features (ucharclasses[2]) not fixed
yet.
> But I’d be happy to perform an update by the end of the week if this
> was convenient for you.
This would be nice indeed :-) But there is definitely no pressure
from my side. I now know what to do.