AusRegistry sets the record straight:
Most notably, they state:
At 00:00:00 on July 1, 2018, .au Registry switches in full away from Neustar. From this point, Neustar has zero control of DNS, security, support and other operations for .au. As requested by auDA, there is no rollback option for this transition – which sadly means Neustar won’t be able to support the .au community with its 3.1 million domains any longer.
As expected given the experience of running the .au domain Registry for the last 16 years, Neustar has strong opinions on the transition process. We’ve raised concerns with the timing and details of the transition and the inherent risks of this process to all relevant parties including auDA, the Department of Communications and the Arts (DOCA), as well as a number of other Australian Government agencies and departments.
Neustar has not seen what we would consider to be a sufficiently detailed Transition Plan, nor did we participate in or have seen the results of the risk assessments performed by auDA. We have found this behaviour quite puzzling and concerning and believe it is unusual for a transition of this nature.