One and done by Hammond on this Autumn Statement
Spring budget will be the final spring budget and budget will be moved to Autumn
No shit, but he's going to then have a spring statement from 2018 :-D
The long and short is that he's not going to be issuing a budget and then tinkering with it later in the year. The Spring statement will be a review and publication of the OBR's forecasts that come at that time, there will be no additional budget changes at that time.