The development cycle of Ubuntu 17.04 will continue in January 2017 with the second Alpha milestone, which should arrive for public testing on the 26th. Then, the Feature Freeze and Debian Import Freeze stages are set for February 16, followed by the Beta 1 Freeze stage and Ubuntu 17.04 Beta 1 release on the 23rd of February 2017. Of course, both Alpha 2 and Beta 1 builds will be only for opt-in flavors, as mentioned above, and you’ll finally be able to get your hands on the Final Beta release of the upcoming Ubuntu 17.04 (Zesty Zapus) operating system on Monday, March 23, which also marks the beginning of the Final Beta Freeze stage.