There's a dscanner check to look for undocumented public symbols.
It finds about 3K symbols. This means Phobos is massively "leaking" symbols.
Most of them can simply be set to private, but others may need to undergo a deprecation process.
For the full result see:
http://pastebin.com/6rygthes
(or run make -f posix.mak style with the `undocumented_declaration_check` enabled)
Comment #1 by robert.schadek — 2024-12-01T16:29:47Z