Issue: DIsambiguation manager

That's one way to do it. I like this method because then users don't need to create disambiguation templates, disambiguation pages can be handled as a new content-type, and users can enter decent descriptions of the various pages (which was not possible using the Category disambiguation method I suggested for VW3).

Very nice to see that this is in progress. When is this expected to arrive?
Will disambiguation pages still have a preview for wiki links? i.e. autolinked disambiguation words in forum posts and wiki pages still have the popup preview?

I have not worked on this myself in a while, but I do recall that some work has already been started (DMs, tables, etc were made). I merely updated the Status to reflect that. I doubt the feature will be completed for RC 3.

But yes, all routed content, including Disambiguation pages, receive link previews.

Over the years, I have frequently encountered the need for this. Please implement this.

Implemented disambiguation management in the next release.

On most routable content, you will now have Options > Disambiguate This Page.
This is a form that allows you to find a "Disambiguation Page" or create a new one.
The form requires that you to set a short description and a long description for the current page, to describe how the page is different from others that may be confused with it.

Disambiguation-Pages use a new content-type "Disambiguation". You can disable the whole system by disabling the content-type.
Disambiguation-Pages cannot themselves be disambiguated. You cannot disambiguate synonyms.

When viewing a content that has been disambiguated, there is a banner at the top, specifying that the current page is the one about the [short description], and gives a link to the Disambiguation-Page if the user actually wanted to visit a different variation.

The Disambiguation-Page can have its own text, but doesn't need it. It contains a list of the ambiguous pages and their long descriptions. If there are a lot of ambiguous pages, navigation appears. In the future we will probably add the ability to group entries under headings. In 4.2, we will likely add support to disambiguate non-wiki content, such as forum threads.

Since the list is text-based and can contain a mixture of content-types, it does not support inline moderation. Instead, on the Disambiguation-Page, you may use Options > Manage Disambiguation Entries. This page lets you reorder the entries, or delete them en masse.

Special:DisambiguationPages is an alphabetical list of all Disambiguation-Pages.
Special:MostAmbiguousTerms is a list of Disambiguation-Pages in order from most entries to least entries.

For users to be able to disambiguate, they will need new permissions turned on. Most moderators should automatically gain permission upon upgrade.

Thank you!