Ubuntu 17.10 will follow the same development cycle like before, which means that a total of two Alpha will be made available to public testers on June 29 and July 27 respectively, only for opt-in flavors, of followed by the first Beta, which lands on August 31. The Final Beta or Beta 2 for the opt-in flavors is currently scheduled to land on September 28, and it looks like the final release of Ubuntu 17.10 (Artful Aardvark), which will probably sport the GNOME 3.26 desktop environment by default, which launches on September 13, is hitting the streets on October 19, 2017.