2006

2006 included another Eric Nylund novel, the first graphic novel, and the announcements for Halo 3 and Halo Wars.

February
February 23
 * Halo3.com, registered in 2004, transfers ownership from Microsoft's "Trout & Zimmer" holding company to Microsoft Corporation.

April
April 25
 * Volume 2 of the Halo 2: Original Soundtrack is released.

May
May 12 May 17
 * The Halo 3 Announcement Trailer is first shown at E3 2006.
 * The discovery of the extrasolar planet HD 69830, which the Kig-yar homeworld Eayn supposedly orbits, is announced.

July
July 19
 * The Halo Graphic Novel is released.

September
September 27
 * The Halo Wars Announcement Trailer is first shown at the Microsoft X06 media briefing.

October
October 31
 * The novel Halo: Ghosts of Onyx is released.

December
December 4
 * The Starry Night trailer for Halo 3 is released.