Explore the resurgence of JRuby in 2022 with Ruby 3.1 support and advancements in performance and scaling in this RailsConf 2022 talk. Discover how JRuby offers world-class garbage collection, native JIT compilation for increased performance, and true parallel threading. Learn how to reduce latency and resource costs by hosting a single JRuby process for all concurrent users in your Rails app. Gain insights into why JRuby remains the only alternative Ruby deployed at scale, powering mission-critical operations for companies worldwide. Uncover the potential of JRuby to enhance your Rails application's scalability and efficiency in this informative 30-minute presentation.