The NBN Gateway team has released a revised version of the NBN Metadata Form (version 3.3) which can be found here. The main change is in the NBN Gateway Data Provider Agreement section F.
The NBN Gateway Data Provider agreement now covers both new and updated datasets so the metadata form is only required for new datasets. Data providers, once they are using this updated form, will no longer need to submit the metadata form for updated datasets (unless they wish to update the metadata as part of the import process or change the public access level). This should make it easier for data providers submitting datasets to the NBN Gateway and will make the data upload process more efficient