Thoughts on versioning

[Ola Fosheim Grøstad]

On Wednesday, 27 October 2021 at 07:44:19 UTC, Sebastiaan Koppe 
wrote:
> Whenever people have to maintain several versions of a product 
> what they often do is to implement the old version in terms of 
> the new. From the outside it seems version 1 is still available 
> but internally it is just version 2 + the quirks of version 1. 
> That might not be possible everywhere, especially if the newer 
> versions stray too much.

This is can be problematic when you have advanced introspection. 
This could potentially ruin future language advances (more 
powerful introspection).

I don't think the community should assume that what works for 
other languages will serve D well.

Basically, maintaining multiple versions of a standard lib for a 
language that is evolving is overreaching. You get another layer 
of issues in addition to the ones you already have.