in parameter - do we still need to add -preview=in ?

[Richard (Rikki) Andrew Cattermole]

On 11/11/2025 2:00 AM, Brother Bill wrote:
> https://dlang.org/changelog/2.094.0.html#preview-in
> 
> My question is whether to get the optimal `const scope` behavior with 
> `in`, do we still need to add:
>     `-preview=in` to the CLI when compiling our D program?
Yes. It has not been turned on by default yet.