If you see a ton of official patches and tools in the latest file uploads list, that would be me archiving all the good stuff developers have been giving us over the years, with the staff's blessing. This was mostly a dump of files made to fill the gap in GameFront's library before it was relaunched as its own thing in 2018.
The latest version of the official map editor for C&C 3: Kane's Wrath. Please note: You must update Kane's Wrath to patch 1.01 or newer for this latest version of Worldbuilder to function correctly.
This new version of Worldbuilder for Command & Conquer 3 Kane's Wrath contains a few critical fixes to the version that originally shipped with the tool.