rack 2.1.1 has released

https://github.com/rack/rack/compare/2.1.0...2.1.1

Gemfile

@@ -12,9 +12,6 @@ gem "rake", ">= 11.1"
 gem "capybara", ">= 2.15"
 gem "selenium-webdriver", ">= 3.141.592"
 
-# TODO: Remove the line once next version has released.
-gem "rack", github: "rack/rack", ref: "1b82d84"
-
 gem "rack-cache", "~> 1.2"
 gem "sass-rails"
 gem "turbolinks", "~> 5"

Gemfile.lock

@@ -14,13 +14,6 @@ GIT
       event_emitter
       websocket
 
-GIT
-  remote: https://github.com/rack/rack.git
-  revision: 1b82d84d80c7d02a04122517da4a3874e5b78ba7
-  ref: 1b82d84
-  specs:
-    rack (2.2.0)
-
 PATH
   remote: .
   specs:
@@ -370,6 +363,7 @@ GEM
       thor
     raabro (1.1.6)
     racc (1.4.16)
+    rack (2.1.1)
     rack-cache (1.10.0)
       rack (>= 0.4)
     rack-protection (2.0.7)
@@ -578,7 +572,6 @@ DEPENDENCIES
   queue_classic!
   qunit-selenium
   racc (>= 1.4.6)
-  rack!
   rack-cache (~> 1.2)
   rails!
   rake (>= 11.1)