Some temporary visa's extended to support Australia’s economic recovery

408 COVID visa extended (in some circumstances)
Temporary visa holders with work rights will be able to access the COVID-19 Pandemic Event (Subclass 408) visa incurring no Visa Application Charge for a period of 6 or 12 months if they work in any sector of the Australian economy.

476 Visa
Eligible Skilled-Recognised Graduate (Subclass 476) visa holders who lost time in Australia as a result of COVID-19 international border restrictions will have their visas extended for 24 months. This visa allows recent engineering graduates to live, work or study in Australia. This will provide eligible visa holders with the usual length of the visa, plus an additional six months.

407 Visa
Due to current workforce shortages, the Government is temporarily extending this arrangement by removing the limit on secondary Training (subclass 407) visa holders’ working hours across all sectors of the economy.

See full announcement here;
https://minister.homeaffairs.gov.au/AlexHawke/Pages/enhancing-temporary-visa-settings-to-support-economic-recovery.aspx