Microsoft XDK

The official XDK (Xbox Development Kit) was only released to licensed developers. However, it got leaked a couple of times.

List of known versions

• 3424 (alpha?)
• 3911 (*)
• 3925 (*)
• 3936 (*)
• 3937 (*)
• 3941 (*)
• 3948 (*)
• 3950 (*)
• 4034 (*)
• 4039 (*)
• 4134 (*)
• 4242 (*)
• 4361
• 4400 (rare)
• 4432
• 4531
• 4627
• 4721
• 4831
• 4928
• 5028
• 5120
• 5233
• 5344
• 5455
• 5558
• 5659
• 5788
• 5849 (Dec 2003)
• 5849.16
• 5933 (uncertain number - Dxbx code mentions 5911)

(*) : Earlier XDK's contained libraries with different versions numbers. Before or around XDK version 4361, all libraries in the XDK were given the same version number.

Note : An even more complete listing can be found here : http://codeasm.com/xbox/files/Xbox%20Kernel_Dash_XDK%20versions.txt