According to the release notes, the new Federation carrier will not be available today, as it is not mentioned?
If you remember correctly, the Odyssey was never "announced" in patch notes, but it was released on the date the blog announced. It'll be coming out today, I expect. Especially considering that the new patch implements all of the pet changes and dil store pet releases.
Uk is currently on BST (British Summer Time) Not GMT untill October.. so what ever time it says UTC for maintainence add an hour to it .. so today in the uk the maintainence will begin at 3pm this afternoon