Gith* racial classes?

[Terramotus]

Is anyone aware of any sources for racial class progressions for the githyanki and/or githzerai, published or not? I've heard that there might be one in a dragon issue, but have thus far been unable to track down which one it might be in. Any help would be greatly appreciated.

 

[Anony Mouse]

Incursion: Knights of the Lich Queen appears in Polyhedron 59 which is the back half of Dungeon #100. it has Racial feats, classes, equipment, and tries to explore their culture and social classes. IMO the best use polyhedron has been put to