Epic Games has deprecated the original UDK Forums, which itself was a remnant of the original Epic Games Forums. Both are in the Shadow Realm now, and the former is not even accessible anymore. Predicting and fearing this will eventually happen just a year prior, myself and many other veterans of UE3 have come together to form a Discord server to preserve the UDK history and it’s valuable (and now priceless) resources - one of the only means to effectively develop games for UDK.
The spirit and history of Unreal Engine 3 must survive.