This is another candidate to become DIP 1013. It standardizes the deprecation process for DMD, DRuntime and Phobos. It is currently in Draft Review and has had some discussion already, but I'd like to get a few more eyes on it before moving forward.

Please familiarize yourself with the intent of the Draft Review stage [1] and keep all feeback in the PR thread [2].

Thanks!

[1] https://github.com/dlang/DIPs/blob/master/PROCEDURE.md#draft-review
[2] https://github.com/dlang/DIPs/pull/108