Victoria has recorded three new locally acquired Covid-19 cases.
The state, entering its seventh day of lockdown, has now recorded 63 community cases since last Monday.
The 24-hour total will provide reassurance to health authorities, with Acting Premier James Merlino warning on Wednesday cases would "explode" if the state's stringent restrictions were not in place.
The daily total is the lowest since the latest outbreak began.
If none of the new cases are from regional Victoria, the region will lift its lockdown at midnight. It is unclear at this stage where the new cases are located and whether they are linked to previous cases.
Greater Melbourne's lockdown will be extended by a week.
One of the cases is understood to be an aged care resident at Arcare in Maidstone and was reported in the media on Wednesday.
Late on Wednesday, Premier Daniel Andrews shared a message with Victorians on his social media thanking them for their response to the outbreaks.
"Please know that every individual effort you made today, and everything you'll do tomorrow and every day after will save lives," he said.
Victorians set more records
Victorians continued their impressive call to action, with a record 57,519 tests performed on Wednesday.
There were 23,921 vaccines administered in the same period.
If regional Victoria is to come out of lockdown, the so-called "ring of steel", used last year to enforce the regional divide, will be replaced by roving police patrols.
Instead, the onus will be on regional businesses checking the IDs of customers, while Service Victoria QR code check-ins will become mandatory statewide in retail settings such as supermarkets.
There are now 370 exposure sites listed on the health department's website, with several suburban bus routes from May 25-28 added on Wednesday night.
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