"in" no longer "scope" since 2.079.0?

[Boris-Barboris]

Hello! Can someone point me to the changelong entry or maybe a 
pull request, wich changed the "in" from "scope const" to 
"const"? I thought the previous matter of things was pretty 
natural, and current "in" is now redundant. Would be glad to read 
up on this design decision.

https://docarchives.dlang.io/v2.078.0/spec/function.html#parameters
https://docarchives.dlang.io/v2.079.0/spec/function.html#parameters