Puma 6

Puma 6 brings performance improvements for most applications, experimental Rack 3 support, support for Sidekiq 7 Capsules, and more.Here's what you should do:Review the Upgrade section below to look for breaking changes that could affect you.Upgrade to version 6.0 in your Gemfile and deploy.Open up a new bug issue if you find any problems.Join us in building Puma! We welcome first-timers. See CONTRIBUTING.md.For a complete list of changes, see History.md.