This presumably affects Xenial since 1.66.21+2.02~beta2-36ubuntu3.21 is published in xenial-proposed only currently. The latest version of update-manager on Xenial at the moment is 1:16.04.15 from xenial-updates.
This presumably affects Xenial since 1.66.21+ 2.02~beta2- 36ubuntu3. 21 is published in xenial-proposed only currently. The latest version of update-manager on Xenial at the moment is 1:16.04.15 from xenial-updates.