Update 2022-01-26: New Zealand moved from the Orange to the Red Alert Level on Monday (24 January) following the emergence of Omicron community cases. This leads to restrictions on permitted gatherings, amongst others. For example, vaccinated people are now only allowed to gather with 100 people who have also been vaccinated, while an upper limit of 25 people applies to the unvaccinated. Further details are available via the links below.
New Zealand Government, 1news