What is the meaning of the planned “private protected” C# access modifier?

Question

As part of the Roslyn documentation on GitHub, there\'s a page called Language feature implementation status, with planned language features for C# and VB.

One featu

Answer 1

This is just to provide a graph (made with http://ashitani.jp/gv/) of the different accessibility levels (images do not fit in comments).

Each arrow means "is more restrictive than".

The CLR names are Private, FamilyANDAssembly, Assembly, Family, FamilyORAssembly, Public.

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Much later edit: It turned out this nice new access level (with a really poor name) was not eventually included in C# 6.0. It is supported only from C# 7.2 (and I see you updated your question "tags").