Ghosting a language feature

[Avrina]

On Monday, 21 September 2020 at 23:57:17 UTC, Walter Bright wrote:
> Once something is implemented, I don't see the advantage of 
> delaying deployment of it, possibly for years, in order to meet 
> some arbitrary milepost.

A lot of c++ features get implemented before the spec is 
finalized. You can use the features by specifying a specific 
version. For anyone that wants bleeding edge they can access the 
new features. Those new features tend to introduce regressions 
and are buggy. The bugs that get ironed out early on don't follow 
deprecation paths as the feature is still new and isn't used that 
wildly, so breaking changes are let through more easily in these 
cases. Discouraging investing in using the feature even if it is 
"implemented".