We're done a significant enhancement to the Choreo authorization model. We've transitioned from a traditional Role-Based Access Control (RBAC) system to a more granular Resource-Based Access Control (ReBAC) model. This allows for finer control over access, enabling permissions to be managed at the individual resource level. Additionally, we've introduced the concept of user groups, simplifying the management of access rights for collections of users. This improvement ensures a more tailored and secure approach to managing your resources and user permissions within Choreo.