June 14th, 2010· Added a note about Industri with Tenebrae.
· + QuakeSpasm, AudioQuake, Quore
· Fixed the directory hierarchy diagram.
· Many minor engine updates
December 29th, 2008· Added detailed mapping section, with much input from GB.
· Quite reordered document
· Added notes for other game types such as CTF and Rocket Arena, and removed FuhQuake.
· Added a few links to the id store.
· Added sections about performance issues, and NvAGP.
· Rewrote Q3 section..
· Restructured multiplayer mods sections of the document, especially the Quake II section.