Victoria's Health Department says the state has recorded one new coronavirus infection and no deaths.
For the third consecutive day, there were no Covid-19 deaths registered.
Melbourne's 14-day rolling average of new cases is 8.1, according to government figures released on Saturday morning, while in regional Victoria it has dipped slightly to 0.5.
Victoria state officials have said they would ease restrictions when the average for new daily cases over a two-week window falls below five.
It was the lowest number of cases since June 9 and brought relief to Melburnians, providing further evidence health authorities have managed to suppress the stubborn tail end of the second wave.
The young child was taken to Melbourne's Royal Children's Hospital and is being treated as a "mystery case".
But Premier Daniel Andrews said only the restrictions that were safe to ease would be eased over the weekend.
Under the state government's initial roadmap out of restrictions, Melbourne's next step was to begin on 26 October.
Mass COVID-19 testing has occurred in Shepparton after truck driver from Melbourne spread coronavirus into the area.
The state's coronavirus death toll remains at 816 and the Australian total is 904.
The step was moved forward to Monday but an outbreak at a Chadstone Shopping Centre store meant the city wouldn't meet its required case targets.
Yesterday the Premier did not reveal what specific changes would be announced tomorrow.
Mr Andrews has confirmed Sunday's announcements will be "much more in the social space than in the economic space", dashing the hopes of those in retail and hospitality industries.