Hi all, the AUSY calendar includes Aug & Oct holidays, this year being Aug 1 & Oct 3 2022.
See here Strata/GlobalHolidayCalendars.java at main · OpenGamma/Strata · GitHub
However, these are state-local holidays, and not exchange holidays, according to www.rba.gov.au/schedules-events/bank-holidays/
See www2.asx.com.au/markets/market-resources/trading-hours-calendar/cash-market-trading-hours/trading-calendar
and www.cboe.com.au/trading-information/market-holidays
These holidays should not be part of your AUSY holiday set, since they are not exchange holidays.