Rails Framework Defaults - Defusing the Time Bomb in Your Upgraded App

Learn how to properly complete your Rails upgrade by addressing the critical but often overlooked step of updating framework defaults in this 27-minute conference talk from RailsConf 2025. Discover why your Rails upgrade isn't truly finished once it's live in production and understand the hidden risks of outdated defaults that can create problems down the line. Master the essential steps to safely update Rails framework defaults, a process that's poorly documented but crucial for maintaining application stability. Gain practical insights into identifying and resolving configuration issues that most upgrade tutorials fail to address, ensuring your upgraded Rails application is fully optimized and secure.