21CTO

Aug 14, 2024 · Backend Development

Rails 7.2 Unveiled: YJIT Default, DevContainers & Performance Boosts

Rails 7.2 introduces YJIT as the default JIT compiler, requires Ruby 3.3 for default use, adds automatic devcontainer generation with Redis, database, and headless Chrome support, reduces default Puma threads, and includes Brakeman security analysis, delivering notable performance and developer experience improvements.