`Base.Bottom` is referred to in the `Union{}` doc string, but it's not public

[nsajko]

https://docs.julialang.org/en/v1/base/base/#Union{}

Usage of objects named "Bottom" among packages: https://juliahub.com/ui/Search?type=symbols&q=Bottom&u=use

Solutions, two alternatives:

1. make Base.Bottom public
2. delete Bottom from the Base and from the doc string of Union{}. This could be a viable minor change, after a PkgEval, etc.

[Keno]

I don't see why this is a problem.

[nsajko]

It's a problem because Base.Bottom being referred to in the docs misleads new users to think that Bottom is public API. So I guess we want to either make it public, or delete it from the doc string?

[Keno]

It's a problem because Base.Bottom being referred to in the docs misleads new users to think that Bottom is public API

Why is this implied. Lots of doc strings talk about internals. We very explicitly moved away from documented == public, because it just leads to things not being documented.

[nsajko]

OK then I was mistaken.

We very explicitly moved away from documented == public

Ref?

[LilithHafner]

Ref?

https://github.com/JuliaLang/julia/pull/50105/files#diff-3591da1fafe13d9fcae96e5b32a9492c6fb68b7e33ac0810b106b09b45d59534

https://docs.julialang.org/en/v1.11.0-rc2/manual/faq/#man-api

[nsajko]

OK, then this is only a possible documentation style issue. I'd prefer the docs (except the devdocs, of course) to only document public interfaces, to be more newbie-friendly? Probably not worth it keeping the issue open.

[LilithHafner]

I think the solution for doc style is option ii in JuliaDocs/Documenter.jl#1506 (comment)