The Unreal Engine Wiki consists of great community created and shared resources, while all of Epic’s official documentation can be founds in the Unreal Engine Documentation. Often times, a page will get out of date because the author hasn’t gone in and refreshed the content. We still use the Wiki from time to time to post tidbits of information, but we don’t actively go through and update pages authored by the community like we do our documentation.
We recognize that a lot of wiki info is a bit hidden (we don’t even have author listed on a page, what’s wrong with us?) but are actively working towards a large number of improvements to the Unreal Engine Wiki that allows for easier/better collaboration and contribution
I’ll see what short term solutions we can find to allow developers to mark a page as “out of date”!