Editor’s note: Due to possible status changes related to COVID-19 and the delta and omicron variants, please check with the organizer before attending to ensure the event hasn’t been canceled or postponed. See further state of Colorado guidance at covid19.colorado.gov. The countdown to the New Year is officially on, and despite uncertainty about a new COVID-19 variant, it seems the city is ready to party like it’s 2019. That being said, many of Denver’s biggest parties require proof of vaccination to attend, so check event details before you buy a ticket.