diff --git a/.editorconfig b/.editorconfig
index 538ba2b2..a6e7d262 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -3,3 +3,7 @@ root = true
 [*]
 indent_style = tab
 indent_size = 2
+
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2
diff --git a/.github/workflows/coverage.yaml b/.github/workflows/coverage.yaml
index 81f3c655..68adbf24 100644
--- a/.github/workflows/coverage.yaml
+++ b/.github/workflows/coverage.yaml
@@ -21,10 +21,10 @@ jobs:
           - macos
         
         ruby:
-          - "3.2"
+          - "3.3"
     
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{matrix.ruby}}
@@ -34,7 +34,7 @@ jobs:
       timeout-minutes: 5
       run: bundle exec bake test
 
-    - uses: actions/upload-artifact@v2
+    - uses: actions/upload-artifact@v3
       with:
         name: coverage-${{matrix.os}}-${{matrix.ruby}}
         path: .covered.db
@@ -44,10 +44,10 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: "3.2"
+        ruby-version: "3.3"
         bundler-cache: true
     
     - uses: actions/download-artifact@v3
diff --git a/.github/workflows/documentation.yaml b/.github/workflows/documentation.yaml
index 3d483fc8..8dc52272 100644
--- a/.github/workflows/documentation.yaml
+++ b/.github/workflows/documentation.yaml
@@ -5,9 +5,6 @@ on:
     branches:
       - main
 
-    # Allows you to run this workflow manually from the Actions tab:
-    workflow_dispatch:
-
 # Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages:
 permissions:
   contents: read
@@ -28,11 +25,11 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: "3.2"
+        ruby-version: "3.3"
         bundler-cache: true
     
     - name: Installing packages
@@ -43,7 +40,7 @@ jobs:
       run: bundle exec bake utopia:project:static --force no
     
     - name: Upload documentation artifact
-      uses: actions/upload-pages-artifact@v1
+      uses: actions/upload-pages-artifact@v2
       with:
         path: docs
   
@@ -58,4 +55,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v1
+        uses: actions/deploy-pages@v3
diff --git a/.github/workflows/test-external.yaml b/.github/workflows/test-external.yaml
index 0d186b8f..21898f54 100644
--- a/.github/workflows/test-external.yaml
+++ b/.github/workflows/test-external.yaml
@@ -25,7 +25,7 @@ jobs:
           - "3.3"
     
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{matrix.ruby}}
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 942ede73..0769a983 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -21,9 +21,9 @@ jobs:
           - macos
         
         ruby:
-          - "3.0"
           - "3.1"
           - "3.2"
+          - "3.3"
         
         experimental: [false]
         
@@ -39,7 +39,7 @@ jobs:
             experimental: true
     
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{matrix.ruby}}
diff --git a/async-http.gemspec b/async-http.gemspec
index 7bd0bcd7..5f227b14 100644
--- a/async-http.gemspec
+++ b/async-http.gemspec
@@ -7,7 +7,7 @@ Gem::Specification.new do |spec|
 	spec.version = Async::HTTP::VERSION
 	
 	spec.summary = "A HTTP client and server library."
-	spec.authors = ["Samuel Williams", "Brian Morearty", "Bruno Sutic", "Janko Marohnić", "Adam Daniels", "Thomas Morgan", "Cyril Roelandt", "Denis Talakevich", "Ian Ker-Seymer", "Igor Sidorov", "Marco Concetto Rudilosso", "Olle Jonsson", "Orgad Shaneh", "Sam Shadwell", "Stefan Wrobel", "Tim Meusel", "Trevor Turk", "Viacheslav Koval"]
+	spec.authors = ["Samuel Williams", "Brian Morearty", "Bruno Sutic", "Janko Marohnić", "Thomas Morgan", "Adam Daniels", "Anton Zhuravsky", "Cyril Roelandt", "Denis Talakevich", "Ian Ker-Seymer", "Igor Sidorov", "Josh Huber", "Marco Concetto Rudilosso", "Olle Jonsson", "Orgad Shaneh", "Sam Shadwell", "Stefan Wrobel", "Tim Meusel", "Trevor Turk", "Viacheslav Koval", "dependabot[bot]"]
 	spec.license = "MIT"
 	
 	spec.cert_chain  = ['release.cert']
@@ -15,9 +15,14 @@ Gem::Specification.new do |spec|
 	
 	spec.homepage = "https://github.com/socketry/async-http"
 	
+	spec.metadata = {
+		"documentation_uri" => "https://socketry.github.io/async-http/",
+		"source_code_uri" => "https://github.com/socketry/async-http.git",
+	}
+	
 	spec.files = Dir.glob(['{bake,lib}/**/*', '*.md'], File::FNM_DOTMATCH, base: __dir__)
 	
-	spec.required_ruby_version = ">= 3.0"
+	spec.required_ruby_version = ">= 3.1"
 	
 	spec.add_dependency "async", ">= 1.25"
 	spec.add_dependency "async-io", ">= 1.28"
diff --git a/examples/header-lowercase/benchmark.rb b/examples/header-lowercase/benchmark.rb
index 58d92fb7..45338271 100644
--- a/examples/header-lowercase/benchmark.rb
+++ b/examples/header-lowercase/benchmark.rb
@@ -1,3 +1,8 @@
+# frozen_string_literal: true
+
+# Released under the MIT License.
+# Copyright, 2023-2024, by Samuel Williams.
+
 require 'benchmark/ips'
 
 class NormalizedHeaders
diff --git a/fixtures/async/http/a_protocol.rb b/fixtures/async/http/a_protocol.rb
index 62c90e11..c3b06f8d 100644
--- a/fixtures/async/http/a_protocol.rb
+++ b/fixtures/async/http/a_protocol.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2018-2023, by Samuel Williams.
+# Copyright, 2018-2024, by Samuel Williams.
 # Copyright, 2020, by Igor Sidorov.
 
 require 'async'
diff --git a/gems/async-head.rb b/gems/async-head.rb
deleted file mode 100644
index 8a6d92fd..00000000
--- a/gems/async-head.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# frozen_string_literal: true
-
-# Released under the MIT License.
-# Copyright, 2021-2023, by Samuel Williams.
-
-source 'https://rubygems.org'
-
-eval_gemfile("../gems.rb")
-
-gem 'async', git: "https://github.com/socketry/async"
diff --git a/gems/async-v1.rb b/gems/async-v1.rb
deleted file mode 100644
index c876a971..00000000
--- a/gems/async-v1.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# frozen_string_literal: true
-
-# Released under the MIT License.
-# Copyright, 2021-2023, by Samuel Williams.
-
-source 'https://rubygems.org'
-
-eval_gemfile("../gems.rb")
-
-gem 'async', '~> 1.0'
diff --git a/lib/async/http/client.rb b/lib/async/http/client.rb
index 93485f7b..5783669d 100755
--- a/lib/async/http/client.rb
+++ b/lib/async/http/client.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2017-2023, by Samuel Williams.
+# Copyright, 2017-2024, by Samuel Williams.
 # Copyright, 2022, by Ian Ker-Seymer.
 
 require 'async/io/endpoint'
diff --git a/lib/async/http/endpoint.rb b/lib/async/http/endpoint.rb
index ce808396..88c85dbe 100644
--- a/lib/async/http/endpoint.rb
+++ b/lib/async/http/endpoint.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2019-2023, by Samuel Williams.
+# Copyright, 2019-2024, by Samuel Williams.
 # Copyright, 2021-2022, by Adam Daniels.
 
 require 'async/io/host_endpoint'
diff --git a/lib/async/http/protocol/http1/connection.rb b/lib/async/http/protocol/http1/connection.rb
index a12a6271..fb8491bb 100755
--- a/lib/async/http/protocol/http1/connection.rb
+++ b/lib/async/http/protocol/http1/connection.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2018-2023, by Samuel Williams.
+# Copyright, 2018-2024, by Samuel Williams.
 
 require 'protocol/http1'
 
diff --git a/lib/async/http/protocol/http1/response.rb b/lib/async/http/protocol/http1/response.rb
index 0803da38..6027e199 100644
--- a/lib/async/http/protocol/http1/response.rb
+++ b/lib/async/http/protocol/http1/response.rb
@@ -1,7 +1,8 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2018-2023, by Samuel Williams.
+# Copyright, 2018-2024, by Samuel Williams.
+# Copyright, 2023, by Josh Huber.
 
 require_relative '../response'
 
diff --git a/lib/async/http/protocol/http1/server.rb b/lib/async/http/protocol/http1/server.rb
index 79bc2486..ebd935fa 100644
--- a/lib/async/http/protocol/http1/server.rb
+++ b/lib/async/http/protocol/http1/server.rb
@@ -1,9 +1,10 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2018-2023, by Samuel Williams.
+# Copyright, 2018-2024, by Samuel Williams.
 # Copyright, 2020, by Igor Sidorov.
 # Copyright, 2023, by Thomas Morgan.
+# Copyright, 2024, by Anton Zhuravsky.
 
 require_relative 'connection'
 
diff --git a/lib/async/http/protocol/http2/connection.rb b/lib/async/http/protocol/http2/connection.rb
index 73f9b75e..a07556a0 100644
--- a/lib/async/http/protocol/http2/connection.rb
+++ b/lib/async/http/protocol/http2/connection.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2018-2023, by Samuel Williams.
+# Copyright, 2018-2024, by Samuel Williams.
 # Copyright, 2020, by Bruno Sutic.
 
 require_relative 'stream'
diff --git a/lib/async/http/protocol/http2/server.rb b/lib/async/http/protocol/http2/server.rb
index 907698ed..a0b77ade 100644
--- a/lib/async/http/protocol/http2/server.rb
+++ b/lib/async/http/protocol/http2/server.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2018-2023, by Samuel Williams.
+# Copyright, 2018-2024, by Samuel Williams.
 
 require_relative 'connection'
 require_relative 'request'
diff --git a/lib/async/http/protocol/http2/stream.rb b/lib/async/http/protocol/http2/stream.rb
index 7cb3c876..580ed196 100644
--- a/lib/async/http/protocol/http2/stream.rb
+++ b/lib/async/http/protocol/http2/stream.rb
@@ -1,8 +1,9 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2018-2023, by Samuel Williams.
+# Copyright, 2018-2024, by Samuel Williams.
 # Copyright, 2022, by Marco Concetto Rudilosso.
+# Copyright, 2023, by Thomas Morgan.
 
 require 'protocol/http2/stream'
 
diff --git a/lib/async/http/protocol/https.rb b/lib/async/http/protocol/https.rb
index a559fd29..028885e9 100644
--- a/lib/async/http/protocol/https.rb
+++ b/lib/async/http/protocol/https.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2018-2023, by Samuel Williams.
+# Copyright, 2018-2024, by Samuel Williams.
 # Copyright, 2019, by Brian Morearty.
 
 require_relative 'http10'
diff --git a/lib/async/http/server.rb b/lib/async/http/server.rb
index 7d5fb1e1..48d8ee00 100755
--- a/lib/async/http/server.rb
+++ b/lib/async/http/server.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2017-2023, by Samuel Williams.
+# Copyright, 2017-2024, by Samuel Williams.
 # Copyright, 2019, by Brian Morearty.
 
 require 'async/io/endpoint'
diff --git a/lib/async/http/version.rb b/lib/async/http/version.rb
index 4ff55e22..b480ed22 100644
--- a/lib/async/http/version.rb
+++ b/lib/async/http/version.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2017-2023, by Samuel Williams.
+# Copyright, 2017-2024, by Samuel Williams.
 
 module Async
 	module HTTP
diff --git a/license.md b/license.md
index 22d2d13e..c694bcc7 100644
--- a/license.md
+++ b/license.md
@@ -1,6 +1,6 @@
 # MIT License
 
-Copyright, 2017-2023, by Samuel Williams.  
+Copyright, 2017-2024, by Samuel Williams.  
 Copyright, 2018, by Viacheslav Koval.  
 Copyright, 2018, by Janko Marohnić.  
 Copyright, 2019, by Denis Talakevich.  
@@ -18,6 +18,9 @@ Copyright, 2022, by Ian Ker-Seymer.
 Copyright, 2022, by Marco Concetto Rudilosso.  
 Copyright, 2022, by Tim Meusel.  
 Copyright, 2023, by Thomas Morgan.  
+Copyright, 2023, by dependabot[bot].  
+Copyright, 2023, by Josh Huber.  
+Copyright, 2024, by Anton Zhuravsky.  
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/readme.md b/readme.md
index 6eb705a9..1a22fe6b 100644
--- a/readme.md
+++ b/readme.md
@@ -373,7 +373,7 @@ This project uses the [Developer Certificate of Origin](https://developercertifi
 
 ### Contributor Covenant
 
-This project is governed by [Contributor Covenant](https://www.contributor-covenant.org/). All contributors and participants agree to abide by its terms.
+This project is governed by the [Contributor Covenant](https://www.contributor-covenant.org/). All contributors and participants agree to abide by its terms.
 
 ## See Also
 
diff --git a/test/async/http/client.rb b/test/async/http/client.rb
index 367096ef..040b82aa 100644
--- a/test/async/http/client.rb
+++ b/test/async/http/client.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2017-2023, by Samuel Williams.
+# Copyright, 2017-2024, by Samuel Williams.
 
 require 'async/http/server'
 require 'async/http/client'
diff --git a/test/async/http/protocol/http11.rb b/test/async/http/protocol/http11.rb
index 711823bc..3fa8db7e 100755
--- a/test/async/http/protocol/http11.rb
+++ b/test/async/http/protocol/http11.rb
@@ -1,9 +1,11 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2017-2023, by Samuel Williams.
+# Copyright, 2017-2024, by Samuel Williams.
 # Copyright, 2018, by Janko Marohnić.
 # Copyright, 2023, by Thomas Morgan.
+# Copyright, 2023, by Josh Huber.
+# Copyright, 2024, by Anton Zhuravsky.
 
 require 'async/http/protocol/http11'
 require 'async/http/a_protocol'
diff --git a/test/async/http/protocol/http2.rb b/test/async/http/protocol/http2.rb
index 7e6ba775..86d4285b 100644
--- a/test/async/http/protocol/http2.rb
+++ b/test/async/http/protocol/http2.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Released under the MIT License.
-# Copyright, 2018-2023, by Samuel Williams.
+# Copyright, 2018-2024, by Samuel Williams.
 
 require 'async/http/protocol/http2'
 require 'async/http/a_protocol'