Curtin 20.1-2 just passed SRU verification and is now published to Xenial, Bionic, and Focal.
It is currently available in the -updates repositories. The changelog provided in this update can be seen in the package changelog or in the following process bug:
Thank you all for your contributions to this version of curtin as well as the assistance in SRU verification.
If the new version of curtin cause you any problems, please don’t hesitate to file a bug in launchpad.
The curtin team