In January 2023 we proposed the Zoo Sphere of Influence, a new model to represent the value of zoos/aquariums for species and society. This model set out to replace the 50-year-old perception of zoos/aquariums as fulfilling only the objectives of conservation, education, research, and recreation, and instead demonstrate the broad range of impacts zoos/aquariums have for species and society. The Zoo Sphere of Influence Model considers zoos/aquariums working at different scales (from local to international) and acknowledges a wide range of areas that they work. In addition to a visual representation of the value of zoos/aquariums, the initial paper proposed a proof-of-concept evaluation matrix that they could use to self-assess impact. Over a fifteen-month period, we trialled and developed the proposed model and assessment matrix through a global consultation and piloting process (this included piloting at 12 zoos, 5 international workshops/demos and a feedback survey that ran for 7 months). We have updated the model to include new sections on Indigenous Peoples & Local Communities (IP & LCs); Sustainability; and Diversity, Equity, Access, and Inclusion (DEAI). We have additionally updated the assessment criteria to incorporate key zoo/aquarium documents and have added a Core Values section reflecting the fundamental standards conservation zoos/aquariums should be fulfilling. This paper presents the updated version of the Zoo Sphere of Influence. We hope that the model will help zoos/ aquariums achieve the highest possible standard of practice and provide a means of recognising and celebrating these achievements.