The Apollo iOS office hours discussed several topics, including the upcoming support for the @defer directive, which allows clients to communicate with servers that data should be sent back later. Calvin Cestari explained how this directive works and its benefits, while Jeff Auriemma provided context on why it's exciting for Apollo iOS. The team also talked about the performance improvements in Apollo iOS 1.2, including a 15-20% increase in performance, and how they were achieved through changes to data storage and generics. Additionally, Calvin discussed initializers, selection sets, and test mocks, which are related concepts that can help developers generate non-production data for unit tests or previews. The team also touched on the upcoming release of Apple Vision, a new device that combines augmented reality with a camera, and how it might impact the development of Apollo iOS. Throughout the office hours, Calvin and Jeff emphasized the importance of testing and exploring different approaches to achieve the desired functionality.