This bug was fixed in the package unattended-upgrades - 0.93.1ubuntu6
--------------- unattended-upgrades (0.93.1ubuntu6) artful; urgency=medium
* unattended-upgrades: Do not automatically upgrade the development release of Ubuntu unless Unattended-Upgrade::DevRelease is true. (LP: #1649709)
-- Brian Murray <email address hidden> Wed, 17 May 2017 16:28:32 -0700
This bug was fixed in the package unattended-upgrades - 0.93.1ubuntu6
---------------
unattended-upgrades (0.93.1ubuntu6) artful; urgency=medium
* unattended- upgrades: Do not automatically upgrade the development release Upgrade: :DevRelease is true. (LP: #1649709)
of Ubuntu unless Unattended-
-- Brian Murray <email address hidden> Wed, 17 May 2017 16:28:32 -0700