Its been coming for a while, and a recently (June) announced Govt Policy. See
https://ministers.treasury.gov.au/ministers/jim-chalmers-2022/media-releases/modernising-payments-infrastructure-phasing-out-cheques
Reported widely at the time – eg see the ABC
https://www.abc.net.au/news/2023-06-07/australian-government-to-phase-out-cheques-by-2030/102449560