Slim 4.1.0 released

We are excited to announce the Slim 4.1.0 release. Please direct all your feedback for this release to the Slim 4 Release Feedback Thread. The new docs are located here.



  • #2779 Add support for Slim callables Class:method resolution & Container Closure auto-binding in MiddlewareDispatcher
  • #2774 Add possibility for custom RequestHandler invocation strategies


  • #2776 Fix group middleware on multiple nested groups

Unaddressed BC Break From 4.0.0

  • #2777 - Routes can no longer return null