John Carmack has expressed his stance with regard to Linux builds in the past. In December 2000 Todd Hollenshead expressed support for Linux: "All said, we will continue to be a leading supporter of the Linux platform because we believe it is a technically sound OS and is the OS of choice for many server ops." However, on April 25, 2012, Carmack revealed that "there are no plans for a native Linux client" of id's most recent game, "Rage". In February 2013, Carmack argued for improving emulation as the "proper technical direction for gaming on Linux", though this was also due to ZeniMax's refusal to support "unofficial binaries", given all prior ports (except for "Quake III Arena", via Loki Software, and earlier versions of "Quake Live") having only ever been unofficial. Carmack didn't mention official games "Quake: The Offering" and "Quake II: Colossus" ported by id Software to Linux and published by Macmillan Computer Publishing USA.