In recent months, much of the conversation in the Ruby ecosystem has focused on Ruby 4, Rails 8, concurrency, JIT compilers, and runtime capabilities. But while attention was on the language and frameworks, one critical component — present in every web request — has continued to evolve: Rack.
Rack is not just another gem. It is the backbone of the entire Ruby web stack.
Get Germán Giménez Silva’s stories in your inbox
Join Medium for free to get updates from this writer.
If your application speaks HTTP, Rack is in the middle.
