diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 9934474bc..316fbc61b 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -52,7 +52,7 @@ jobs:
       - name: Build SDK
         run: bundle exec rake codegen:build
 
-      - name: Benchmark Gems
+      - name: Benchmark gems
         run: bundle exec rake benchmark:run
 
       - name: Configure AWS credentials
diff --git a/.github/workflows/codegen_ci.yml b/.github/workflows/codegen_ci.yml
index b0b1b23f9..1a731a26f 100644
--- a/.github/workflows/codegen_ci.yml
+++ b/.github/workflows/codegen_ci.yml
@@ -14,8 +14,7 @@ env:
   ruby_version: 3.3
 
 jobs:
-
-  ruby-rbs-type-check:
+  whitelabel-rbs:
     runs-on: ubuntu-latest
 
     steps:
@@ -29,7 +28,7 @@ jobs:
         with:
           ruby-version: ${{ env.ruby_version }}
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Install gems
         run: bundle install
@@ -43,12 +42,12 @@ jobs:
       - name: rbs:test
         run: bundle exec rake rbs:white_label
 
-  ruby-specs:
+  codegen-test:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        ruby: ['3.0', 3.1, 3.2, 3.3]
+        ruby: [jruby-9.4, '3.0', 3.1, 3.2, 3.3]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/downstream_ci.yml b/.github/workflows/downstream_ci.yml
index 6ef395428..1795e26a9 100644
--- a/.github/workflows/downstream_ci.yml
+++ b/.github/workflows/downstream_ci.yml
@@ -14,13 +14,10 @@ env:
   ruby_version: 3.3
 
 jobs:
-
-  aws-sdk-v4-tests:
+  aws-sdk-ruby-v4-tests:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
-
       - name: Setup Java
         uses: actions/setup-java@v1
         with:
@@ -32,7 +29,9 @@ jobs:
           ruby-version: ${{ env.ruby_version }}
           bundler-cache: true
 
-      - name: publish smithy-ruby to maven local
+      - uses: actions/checkout@v4
+
+      - name: Publish smithy-ruby to mavenLocal
         run: bundle exec rake codegen:publish-local
 
       - name: v4 setup and build
diff --git a/.github/workflows/hearth_ci.yml b/.github/workflows/hearth_ci.yml
index 7acfb460f..9e2d3bf56 100644
--- a/.github/workflows/hearth_ci.yml
+++ b/.github/workflows/hearth_ci.yml
@@ -13,12 +13,8 @@ env:
   ruby_version: 3.3
 
 jobs:
-  rspec:
+  hearth-rbs:
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        ruby: ['3.0', 3.1, 3.2, 3.3]
 
     steps:
       - uses: actions/checkout@v4
@@ -26,14 +22,21 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: ${{ matrix.ruby }}
+          ruby-version: ${{ env.ruby_version }}
           bundler-cache: true
 
-      - name: Unit tests
-        run: rake test:hearth
+      - name: Steep
+        run: rake steep:hearth
+
+      - name: RBS
+        run: rake rbs:hearth
 
-  type-check:
+  hearth-test:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: [jruby-9.4, '3.0', 3.1, 3.2, 3.3]
 
     steps:
       - uses: actions/checkout@v4
@@ -41,16 +44,13 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: ${{ env.ruby_version }}
+          ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
 
-      - name: Steep Check
-        run: rake steep:hearth
-
-      - name: RBS Validate
-        run: rake rbs:hearth
+      - name: Test
+        run: rake test:hearth
 
-  rubocop:
+  hearth-rubocop:
     runs-on: ubuntu-latest
 
     steps:
diff --git a/.github/workflows/rails_codegen_ci.yml b/.github/workflows/rails_codegen_ci.yml
index 26ab47b86..0d76afbf4 100644
--- a/.github/workflows/rails_codegen_ci.yml
+++ b/.github/workflows/rails_codegen_ci.yml
@@ -14,7 +14,7 @@ env:
   ruby_version: 3.3
 
 jobs:
-  ruby-rbs-type-check:
+  railsjson-rbs:
     runs-on: ubuntu-latest
 
     steps:
@@ -28,7 +28,7 @@ jobs:
         with:
           ruby-version: ${{ env.ruby_version }}
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Install gems
         run: bundle install
@@ -42,12 +42,12 @@ jobs:
       - name: RBS Checks
         run: bundle exec rake rbs:rails_json
 
-  ruby-specs:
+  railsjson-test:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        ruby: ['3.0', 3.1, 3.2, 3.3]
+        ruby: [jruby-9.4, '3.0', 3.1, 3.2, 3.3]
 
     steps:
       - name: Setup Ruby
@@ -60,7 +60,7 @@ jobs:
         with:
           java-version: ${{ env.java_version }}
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Install gems
         run: bundle install
diff --git a/Gemfile b/Gemfile
index 46d782772..486f6027e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,6 @@ source 'https://rubygems.org'
 
 gem 'hearth', path: './hearth'
 gem 'jmespath'
-gem 'rake', require: false
 gem 'rexml'
 
 group :benchmark do
@@ -16,11 +15,9 @@ group :benchmark do
 end
 
 group :development do
-  gem 'byebug'
-  gem 'rbs'
+  gem 'byebug', platforms: :ruby
   gem 'rubocop'
   gem 'rubocop-rake'
-  gem 'steep'
 end
 
 group :docs do
@@ -29,6 +26,7 @@ end
 
 group :rbs do
   gem 'rbs', platforms: :ruby
+  gem 'steep', platforms: :ruby
 end
 
 group :test do
diff --git a/codegen/projections/rails_json/rails_json.gemspec b/codegen/projections/rails_json/rails_json.gemspec
index 114247b0a..a95b3e7fe 100644
--- a/codegen/projections/rails_json/rails_json.gemspec
+++ b/codegen/projections/rails_json/rails_json.gemspec
@@ -12,7 +12,10 @@ Gem::Specification.new do |spec|
   spec.version       = File.read(File.expand_path('VERSION', __dir__)).strip
   spec.author        = 'Amazon Web Services'
   spec.summary       = 'RailsJson Protocol Test Service'
+  spec.homepage      = 'https://github.com/smithy-lang/smithy-ruby'
   spec.files         = Dir['lib/**/*.rb', 'VERSION']
+  spec.license       = 'Apache-2.0'
 
+  spec.required_ruby_version = '>= 3.0'
   spec.add_runtime_dependency 'hearth', '~> 1.0.0.pre3'
 end
diff --git a/codegen/projections/rpcv2_cbor/rpcv2_cbor.gemspec b/codegen/projections/rpcv2_cbor/rpcv2_cbor.gemspec
index fafa1cf23..e7f5aaf1a 100644
--- a/codegen/projections/rpcv2_cbor/rpcv2_cbor.gemspec
+++ b/codegen/projections/rpcv2_cbor/rpcv2_cbor.gemspec
@@ -12,7 +12,10 @@ Gem::Specification.new do |spec|
   spec.version       = File.read(File.expand_path('VERSION', __dir__)).strip
   spec.author        = 'Amazon Web Services'
   spec.summary       = 'Rpcv2Cbor Protocol Test Service'
+  spec.homepage      = 'https://github.com/smithy-lang/smithy-ruby'
   spec.files         = Dir['lib/**/*.rb', 'VERSION']
+  spec.license       = 'Apache-2.0'
 
+  spec.required_ruby_version = '>= 3.0'
   spec.add_runtime_dependency 'hearth', '~> 1.0.0.pre3'
 end
diff --git a/codegen/projections/white_label/white_label.gemspec b/codegen/projections/white_label/white_label.gemspec
index f054c3877..185cb5d80 100644
--- a/codegen/projections/white_label/white_label.gemspec
+++ b/codegen/projections/white_label/white_label.gemspec
@@ -12,7 +12,10 @@ Gem::Specification.new do |spec|
   spec.version       = File.read(File.expand_path('VERSION', __dir__)).strip
   spec.author        = 'Amazon Web Services'
   spec.summary       = 'White Label Test Service'
+  spec.homepage      = 'https://github.com/smithy-lang/smithy-ruby'
   spec.files         = Dir['lib/**/*.rb', 'VERSION']
+  spec.license       = 'Apache-2.0'
 
+  spec.required_ruby_version = '>= 3.0'
   spec.add_runtime_dependency 'hearth', '~> 1.0.0.pre3'
 end
diff --git a/codegen/smithy-ruby-codegen-test/base-smithy-build.json b/codegen/smithy-ruby-codegen-test/base-smithy-build.json
index fd3bb7b39..100d7cc80 100644
--- a/codegen/smithy-ruby-codegen-test/base-smithy-build.json
+++ b/codegen/smithy-ruby-codegen-test/base-smithy-build.json
@@ -15,7 +15,8 @@
           "gemspec": {
             "gemName": "white_label",
             "gemVersion": "0.0.1",
-            "gemSummary": "White Label Test Service"
+            "gemSummary": "White Label Test Service",
+            "gemHomepage": "https://github.com/smithy-lang/smithy-ruby"
           }
         }
       }
@@ -36,7 +37,8 @@
           "gemspec": {
             "gemName": "rpcv2_cbor",
             "gemVersion": "0.0.1",
-            "gemSummary": "Rpcv2Cbor Protocol Test Service"
+            "gemSummary": "Rpcv2Cbor Protocol Test Service",
+            "gemHomepage": "https://github.com/smithy-lang/smithy-ruby"
           }
         }
       }
diff --git a/codegen/smithy-ruby-codegen/src/main/java/software/amazon/smithy/ruby/codegen/RubySettings.java b/codegen/smithy-ruby-codegen/src/main/java/software/amazon/smithy/ruby/codegen/RubySettings.java
index aa385c6d3..939edd449 100644
--- a/codegen/smithy-ruby-codegen/src/main/java/software/amazon/smithy/ruby/codegen/RubySettings.java
+++ b/codegen/smithy-ruby-codegen/src/main/java/software/amazon/smithy/ruby/codegen/RubySettings.java
@@ -41,12 +41,14 @@ public final class RubySettings {
     private static final String GEM_NAME = "gemName";
     private static final String GEM_VERSION = "gemVersion";
     private static final String GEM_SUMMARY = "gemSummary";
+    private static final String GEM_HOMEPAGE = "gemHomepage";
 
     private ShapeId service;
     private String module;
     private String gemName;
     private String gemVersion;
     private String gemSummary;
+    private String gemHomepage;
 
     /**
      * Create a settings object from a configuration object node.
@@ -67,6 +69,10 @@ public static RubySettings from(ObjectNode config) {
         settings.setGemName(gemspec.expectStringMember(GEM_NAME).getValue());
         settings.setGemVersion(gemspec.expectStringMember(GEM_VERSION).getValue());
         settings.setGemSummary(gemspec.expectStringMember(GEM_SUMMARY).getValue());
+        // optional gemspec values
+        if (gemspec.getMember(GEM_HOMEPAGE).isPresent()) {
+            settings.setGemHomepage(gemspec.getStringMember(GEM_HOMEPAGE).get().getValue());
+        }
 
         LOGGER.info("Created Ruby Settings: " + settings);
 
@@ -143,11 +149,24 @@ public void setGemSummary(String gemSummary) {
         this.gemSummary = gemSummary;
     }
 
+    /**
+     * @return homepage of the gem.
+     */
+    public String getGemHomepage() {
+        return gemHomepage;
+    }
+
+    /**
+     * @param gemHomepage homepage of the gem.
+     */
+    public void setGemHomepage(String gemHomepage) {
+        this.gemHomepage = gemHomepage;
+    }
+
     /**
      * @return default/base dependencies to include.
      */
     public Set<RubyDependency> getBaseDependencies() {
-        //TODO: Read from config (eg allow override of hearth version?)
         return (Set.of(RubyDependency.HEARTH));
     }
 
diff --git a/codegen/smithy-ruby-codegen/src/main/java/software/amazon/smithy/ruby/codegen/generators/GemspecGenerator.java b/codegen/smithy-ruby-codegen/src/main/java/software/amazon/smithy/ruby/codegen/generators/GemspecGenerator.java
index fd1e745f0..1dbd0179a 100644
--- a/codegen/smithy-ruby-codegen/src/main/java/software/amazon/smithy/ruby/codegen/generators/GemspecGenerator.java
+++ b/codegen/smithy-ruby-codegen/src/main/java/software/amazon/smithy/ruby/codegen/generators/GemspecGenerator.java
@@ -70,8 +70,15 @@ public void render() {
                 .write("spec.version       = File.read(File.expand_path('VERSION', __dir__)).strip")
                 .write("spec.author        = 'Amazon Web Services'")
                 .write("spec.summary       = '$L'", settings.getGemSummary())
+                .call(() -> {
+                    if (settings.getGemHomepage() != null) {
+                        writer.write("spec.homepage      = '$L'", settings.getGemHomepage());
+                    }
+                })
                 .write("spec.files         = Dir['lib/**/*.rb', 'VERSION']")
+                .write("spec.license       = 'Apache-2.0'")
                 .write("")
+                .write("spec.required_ruby_version = '>= 3.0'")
                 .call(() -> {
                     // determine set of indirect dependencies - covered by requiring another
                     Set<RubyDependency> indirectDependencies = new HashSet<>();
diff --git a/codegen/smithy-ruby-rails-codegen-test/smithy-build.json b/codegen/smithy-ruby-rails-codegen-test/smithy-build.json
index 577505b2f..c01260028 100644
--- a/codegen/smithy-ruby-rails-codegen-test/smithy-build.json
+++ b/codegen/smithy-ruby-rails-codegen-test/smithy-build.json
@@ -15,7 +15,8 @@
           "gemspec": {
             "gemName": "rails_json",
             "gemVersion": "0.0.1",
-            "gemSummary": "RailsJson Protocol Test Service"
+            "gemSummary": "RailsJson Protocol Test Service",
+            "gemHomepage": "https://github.com/smithy-lang/smithy-ruby"
           }
         }
       }
diff --git a/hearth/hearth.gemspec b/hearth/hearth.gemspec
index c45cfb56a..45d4c972b 100755
--- a/hearth/hearth.gemspec
+++ b/hearth/hearth.gemspec
@@ -12,8 +12,8 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 3.0'
 
-  spec.add_dependency 'jmespath'
-  spec.add_dependency 'rexml'
+  spec.add_dependency 'jmespath', '~> 1.6'
+  spec.add_dependency 'rexml', '~> 3'
 
   spec.license = 'Apache-2.0'
 end
diff --git a/hearth/lib/hearth/http/fields.rb b/hearth/lib/hearth/http/fields.rb
index e63a35e44..ebf7baafc 100644
--- a/hearth/lib/hearth/http/fields.rb
+++ b/hearth/lib/hearth/http/fields.rb
@@ -61,9 +61,10 @@ def clear
         @entries = {}
       end
 
-      # @api private
       def inspect
-        super.gsub(/ @entries={.*},/, '')
+        super
+          .gsub(/ @entries={.*},/, '')
+          .gsub(/, @entries={.*}/, '')
       end
 
       # Proxy class that wraps Fields to create Headers and Trailers
@@ -107,9 +108,8 @@ def each(&block)
         end
         alias each_pair each
 
-        # @api private
         def inspect
-          to_h
+          to_h.to_s
         end
       end
     end
diff --git a/hearth/sig/lib/hearth/http/request.rbs b/hearth/sig/lib/hearth/http/request.rbs
index ed54d0ff3..39db4c15c 100644
--- a/hearth/sig/lib/hearth/http/request.rbs
+++ b/hearth/sig/lib/hearth/http/request.rbs
@@ -1,9 +1,9 @@
 module Hearth
   module HTTP
     class Request < Hearth::Request
-      def initialize: (?http_method: Symbol?, ?fields: Fields, ?uri: URI, ?body: IO) -> void
+      def initialize: (?http_method: String?, ?fields: Fields, ?uri: URI, ?body: IO) -> void
 
-      attr_accessor http_method: Symbol
+      attr_accessor http_method: String?
 
       attr_reader fields: Fields