This new release pulls in the latest Lokomotive changes with possibly breaking changes and can only be updated to by racker upgrade, not by racker update which stays on a compatible version.
Image published under https://quay.io/repository/kinvolk/racker?tab=tags, follow the docs on how to run it for installation on the management node. You can also try the QEMU IPMI simulator environment: https://github.com/kinvolk/racker#test-it-in-vms
Upgrade with an existing cluster
Users should follow this guide from the docs PDF when updating from Racker 0.2:
https://github.com/kinvolk/racker/blob/0.3.0/docs/usage/updating.md#notes-for-upgrading-to-racker-03