Pre-releases of Edgy are *not* encouraged for anyone needing a stable system or who is not comfortable running into occasional, even frequent breakage. They are however recommended for Ubuntu developers and those who want to help in testing, reporting, and fixing bugs.
I’m sorry for not posting this earlier (Yes, its a day old!) Get your copy of Edgy Eft Knot 1 (super-alpha-not-for-production-use) now and help with the testing.