On 27/08/2018 04:08, Benjamin Berg wrote:
> Hey,
> 
> On Sun, 2018-08-26 at 09:36 +0100, Joseph Wright wrote:
>> Simply put: update your code.
> 
> OK, I get that, and there is only so much you can do obviously.
> 
>> We provide a two TL-cycle period for people to update their packages,
>> before removing deprecated commands. The *strong* likelihood is that
>> users updating package X will also update expl3, and vice versa: for
>> most end users, updating is done using their TeX system.
> 
> The problem for me is that I am shipping the package separately, which
> means that I am confronted with whatever version the user already has
> on their machine. This obviously completely breaks the above
> assumption, and I fully understand if there is no intention to support
> this corner case better.

I have ask why: CTAN/TL/MiKTeX is pretty smooth.

That said: if a user can install your package, hopefully they can also 
install l3kernel/l3packages/l3experimental.

Joseph