NSW has recorded 10 new coronavirus cases, including five linked to the Avalon cluster and three linked to the Croydon cluster.
The five in the Avalon cluster are close contacts of previous cases, taking the total for that cluster to 144.
One locally-acquired case is a close contact of one of the two patient transport drivers reported previously.
Another case, from western Sydney, remains under investigation.
NSW Premier Gladys Berejiklian has urged the public to maintain common sense as New Year's Eve celebrations get under way.
"In 2021, we are all hoping it will be easier than 2020 and let's start off the year on a positive foot, by respecting the restrictions that are in place, but also demonstrating common sense," she said during her Thursday press conference. "Good government policy and restrictions doesn't cover every situation and every single venue and every single circumstance."
She also stressed that numbers will continue to "bounce around" over the coming days.
