Xcode 26 introduces Xcode Compilation Caching, significantly enhancing build efficiency for iOS developers by eliminating the need to recompile unchanged code. This new feature leverages LLVM Content Addressable Storage (CAS) to store previously built outputs at a granular level, allowing for faster compilation processes by checking the cache for existing outputs before proceeding with actual compilation. This caching mechanism is similar to Bazel's action cache and uses a gRPC-based protocol for querying and storing data. Bitrise has integrated support for this caching system, providing a local proxy that interacts with the cache backend service, making it compatible with its existing Build Cache product for Gradle and Bazel. The integration involves a Bitrise CLI wrapper around the xcodebuild tool to automate the setup of compilation caching, ensuring seamless connection to the remote cache and integration with Bitrise analytics tools. This development promises faster CI pipelines, reduced infrastructure costs, and quicker local compile-test cycles, enhancing productivity for iOS development teams.