Had all gone according to plan, that would have meant Fedora 18 known to developers by the codename "Spherical Cow" would have arrived this past Tuesday, November 6.
The issue is that the current Fedora 18 source code still contains a number of "blocking bugs,"
And then there is the nagging issue of Windows 8's Unified Extensible Firmware Interface (UEFI) Secure Boot, which can block installation of Linux on newer PCs. In October, the Linux Foundation proposed a "stop-gap measure" that uses a Microsoft-authorized digital key to allow Linux to run, but the Fedora Project board insists on a solution that works without the Microsoft key.
After much discussion and faced with the choice between delaying the project again and "shipping junk," as one FESCo member termed it, the Committee agreed to move the Fedora 18 release date to January 8, 2013, giving developers an extra four weeks to work past the previously announced date.