Upvote:1
It would be advisable to file Form 929 as, in comment, you advised that you had an earlier visa application associated to your passport, albeit with a now-different expiry date.
As Australian Immigration and Border authorities note:
You need to advise the department of any changes to your passport details before and after a visa is granted to you. Where a new passport has been issued or you hold an additional passport(s), you need to provide a certified copy of the bio-data page of this new or additional passport(s) with this form in order for the department to confirm your identity.