* Queensland will welcome Victorians back into the state on December 1, the same day NSW residents will be able to visit again.

* Premier Annastacia Palaszczuk announced the change on Wednesday after Victoria went 28 days without an unlinked case of community COVID-19 transmission.

* Ms Palaszczuk indicated she has also buried the hatchet with NSW Premier Gladys Berejiklian, who has constantly criticised the border closure.

* Tasmania will also open its borders to Victoria on Friday for the first time in more than eight months.

* Prime Minister Scott Morrison challenged states and territories to keep borders and businesses open if coronavirus outbreaks flare up.

* Further restrictions are set to ease in South Australia from December 1, the same day the state is due to reopen its border to Victoria.

* SA will make sweeping reforms to its hotel quarantine system after a cluster of COVID-19 cases, with anyone found to be infected relocated to a hospital guarded by police.

* Premier Steven Marshall will also ask national cabinet to consider testing all Australians returning from overseas before they are allowed to board flights.

* Victorian authorities remain nervous about the potential for undetected coronavirus cases, despite 26 days with no new infections.

* NSW will allow 50 people to gather outdoors including backyards from Tuesday, while 30 people can gather indoors.

* Western Australia will enforce mandatory COVID-19 registering at many businesses from next month, but Premier Mark McGowan insists the system is "not relevant" to the easing of border restrictions.

* No new locally-acquired cases were reported across Australia on Wednesday; virus-hit SA did not add to the 29-case Parafield cluster; NSW has gone 18 days without a locally acquired case but reported four infections in hotel quarantine; Victoria racked up 26 days without a new infection; two returned travellers tested positive in WA hotel quarantine.

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AUSTRALIAN CORONAVIRUS NUMBERS

* There were six new cases recorded in Australia - four in NSW and two in WA. All cases were diagnosed in hotel quarantine.

* The national death toll is 907: Victoria 819, NSW 55, Tasmania 13, WA 9, Queensland 6, SA 4, ACT 3. (Two Queensland residents who died in NSW have been included in the official tolls of both states).

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GLOBAL CORONAVIRUS NUMBERS

* Cases: at least 59,762,000

* Deaths: at least 1,409,000

* Recovered: at least 38,268,000

Data current as of 1845 AEDT November 25, taking in federal and state/territory government updates, Worldometer and Johns Hopkins Coronavirus Resource Centre.

Australian Associated Press