Fauna has renamed its "class" and "instance" terms to "collection" and "document", respectively, in version 2.7, aligning with established NoSQL database terminology. This change aims to improve the experience for developers familiar with SQL or NoSQL databases, as Fauna's usage did not match industry standards. The new names better describe Fauna's flexible schema functionality. To enable these changes, users need to upgrade their driver to version 2.7 or greater, and may require simple code updates to parse response documents correctly.