Release D 2.094.0

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On Thursday, 1 October 2020 at 09:49:36 UTC, Mathias LANG wrote:
> Author here. The most complete way to know would be to read the 
> changelog: https://dlang.org/changelog/2.094.0.html#preview-in
> The TL;DR is that, in addition to `const scope`, `in` now 
> automatically behaves as `ref` when "it makes sense" such as 
> large value types or presence of destructors / postblit (more 
> details in the changelog!) and will accept rvalues, unlike 
> other ref parameters.

Why was this added when we already have `auto ref`? Yes, it makes 
the function a template, but if `in` can automatically choose 
whether the variable is ref or not, then auto ref could easily do 
the same.