Bringing Rails into the Ractor age

Ruby Weekly #814 leads with Ractors becoming production-viable in Ruby 4.1 and what that means for Rails. Worth reading if you have written off Ractors since their experimental years.

#​814 — August 27, 2026 Read on the Web 🗓️ In case you were wondering where we were last week, we took a brief summer vacation. Luckily, it's been a busy couple of weeks in the Ruby world! __ Your editor, Peter Cooper Ruby Weekly Bringing Rails Into the Ractor-Age — "Ractors are now viable in production, and Ruby 4.1 will make them even better," says Edouard, who looks at what Ractors can unlock for Rails apps (nearly 7x memory savings vs Puma on a real-world app) and the steps being tak...