I tried to search "Visibility changes for preview packages" and it turns up nothing. This is part of the title of a sticky post under the "Package Manager" sub-forum, so I would think it should show up. It seems that search is broken for other non-trivial search terms. If I am misunderstanding something, please let me know. PS: I notice that for super trivial search items like "search" things are returned. so for trivial checking search could appear to work.