People I work with have commented that they haven't seen any redelegation
notifications since approximately the end of June.

These are (were?) the notifications which tell you that a domain hosted by
you will-be/has-been redelegated and you need to schedule removal from
your DNS (they used to come from dna_del§MelbourneIT.com.au - presumably
in their former role as registry operator?).

Anyone else seeing these (or can confirm a lack thereof) this month?

Anyone got a pointer to the "official" position on such notifications
under the new regime?

Thanks,
Neale.