Rails Versions You Shouldn’t Be Using Anymore (And Why) - FastRuby.io | Rails Upgrade Service

Ruby on Rails has always moved at a steady, thoughtful pace: each new version brings not only features and performance improvements but also important security hardening. But with every release cycle, older versions reach the end of their lifespan. When a version is officially End-of-Life (EOL), it no longer receives bug fixes or security patches — leaving applications increasingly vulnerable as new threats emerge. In this post we will talk about why continuing to use EOL Rails versions can be dangerous, and how ignoring upgrade timelines can put your business at risk — not just technically, but legally and contractually. Rails Maintenance Policy The Rails core team has a clear maintenance policy opens a new window: 1 year of bug fixes after a release. 2 years of security fixes after a release. After that two-year window, the version is considered EOL. That means no official patch will be released for unsupported versions.