Has not been complete with Ubuntu 12.04 'Final' which is planned to be release tomorrow, canonical has been issued Ubuntu 12.10 which is shceduled to be release in October 18th 2012.
Mark Shuttleworth has announced the codename for Ubuntu 12.10 as 'QuantalQuetzal' . Mark says via his blog, “I give you the Quantal Quetzal, soon to be dressed in tessellated technicolour, now open for toolchains, kernels and other pressing preparatory packages.”
- Alpha 1 – June 7th
- Alpha 2 - June 28th
- Alpha 3 - August 2nd
- Beta 1 - September 6th
- Beta 2 - September 27th
- Ubuntu 12.10 - October 18th
For official schedule or changes, check following official page.