At the end of the 12.10 development cycle, the Ubuntu flavour decided
that it would reduce the number of milestone images going forward and
the focus would concentrate on daily quality and fortnightly testing
rounds known as cadence testing. Based on that change, The Ubuntu
product itself will not have an Alpha-1 release. Its first milestone
release will be the FinalBetaRelease on the 28th of March 2013.
Other Ubuntu flavours have the option to release using the usual