feat!: add Ruby 4.0 support, require minimum Ruby 3.4 (#217)

Signed-off-by: Jose Colella <jose.colella@gusto.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: josecolella

.github/workflows/main.yml

@@ -17,9 +17,8 @@ jobs:
           # - macos-latest
           # - windows-latest
         ruby:
-          - "3.3"
-          - "3.2"
-          - "3.1"
+          - "4.0"
+          - "3.4"
     env:
       BUNDLE_GEMFILE: Gemfile
 
@@ -46,7 +45,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.4.8
+          ruby-version: "3.4"
       - run: bundle install
       - name: Standard
         run: bundle exec rake standard

.ruby-version

@@ -1 +1 @@
-3.4.8
+4.0.1

.tool-versions

@@ -1 +1 @@
-ruby 3.4.8
+ruby 4.0.1

Gemfile.lock

@@ -6,36 +6,46 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    ast (2.4.2)
-    debug (1.9.2)
+    ast (2.4.3)
+    date (3.5.1)
+    debug (1.11.1)
       irb (~> 1.10)
       reline (>= 0.3.8)
-    diff-lcs (1.5.1)
-    docile (1.4.0)
-    io-console (0.7.2)
-    irb (1.12.0)
-      rdoc
+    diff-lcs (1.6.2)
+    docile (1.4.1)
+    erb (6.0.2)
+    io-console (0.8.2)
+    irb (1.17.0)
+      pp (>= 0.6.0)
+      prism (>= 1.3.0)
+      rdoc (>= 4.0.0)
       reline (>= 0.4.2)
-    json (2.7.1)
-    language_server-protocol (3.17.0.3)
+    json (2.18.1)
+    language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
-    markly (0.10.0)
-    parallel (1.24.0)
-    parser (3.3.0.5)
+    markly (0.15.2)
+    parallel (1.27.0)
+    parser (3.3.10.2)
       ast (~> 2.4.1)
       racc
-    psych (5.1.2)
+    pp (0.6.3)
+      prettyprint
+    prettyprint (0.2.0)
+    prism (1.9.0)
+    psych (5.3.1)
+      date
       stringio
-    racc (1.7.3)
+    racc (1.8.1)
     rainbow (3.1.1)
-    rake (13.1.0)
-    rdoc (6.6.3.1)
+    rake (13.3.1)
+    rdoc (7.2.0)
+      erb
       psych (>= 4.0.0)
-    regexp_parser (2.9.0)
-    reline (0.5.0)
+      tsort
+    regexp_parser (2.11.3)
+    reline (0.6.3)
       io-console (~> 0.5)
-    rexml (3.3.6)
-      strscan
+    rexml (3.4.4)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -49,54 +59,59 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
     rspec-support (3.12.2)
-    rubocop (1.62.1)
+    rubocop (1.84.2)
       json (~> 2.3)
-      language_server-protocol (>= 3.17.0)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.1.0)
       parallel (~> 1.10)
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 1.8, < 3.0)
-      rexml (>= 3.2.5, < 4.0)
-      rubocop-ast (>= 1.31.1, < 2.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.49.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.31.2)
-      parser (>= 3.3.0.4)
-    rubocop-performance (1.20.2)
-      rubocop (>= 1.48.1, < 2.0)
-      rubocop-ast (>= 1.30.0, < 2.0)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.49.0)
+      parser (>= 3.3.7.2)
+      prism (~> 1.7)
+    rubocop-performance (1.26.1)
+      lint_roller (~> 1.1)
+      rubocop (>= 1.75.0, < 2.0)
+      rubocop-ast (>= 1.47.1, < 2.0)
     ruby-progressbar (1.13.0)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)
-    simplecov-cobertura (2.1.0)
+    simplecov-cobertura (3.1.0)
       rexml
       simplecov (~> 0.19)
-    simplecov-html (0.12.3)
+    simplecov-html (0.13.2)
     simplecov_json_formatter (0.1.4)
-    standard (1.35.1)
+    standard (1.54.0)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
-      rubocop (~> 1.62.0)
+      rubocop (~> 1.84.0)
       standard-custom (~> 1.0.0)
-      standard-performance (~> 1.3)
+      standard-performance (~> 1.8)
     standard-custom (1.0.2)
       lint_roller (~> 1.0)
       rubocop (~> 1.50)
-    standard-performance (1.3.1)
+    standard-performance (1.9.0)
       lint_roller (~> 1.1)
-      rubocop-performance (~> 1.20.2)
-    stringio (3.1.0)
-    strscan (3.1.0)
+      rubocop-performance (~> 1.26.0)
+    stringio (3.2.0)
     timecop (0.9.10)
-    unicode-display_width (2.5.0)
+    tsort (0.2.0)
+    unicode-display_width (3.2.0)
+      unicode-emoji (~> 4.1)
+    unicode-emoji (4.2.0)
 
 PLATFORMS
   arm64-darwin-21
   arm64-darwin-22
   arm64-darwin-23
   arm64-darwin-24
+  arm64-darwin-25
   x64-mingw-ucrt
   x64-mingw32
   x86_64-darwin-19
@@ -111,7 +126,7 @@ DEPENDENCIES
   rake (~> 13.0)
   rspec (~> 3.12.0)
   simplecov (~> 0.22.0)
-  simplecov-cobertura (~> 2.1.0)
+  simplecov-cobertura (~> 3.0)
   standard
   standard-performance
   timecop (~> 0.9.10)

README.md

@@ -38,9 +38,8 @@
 
 | Supported Ruby Version | OS                    |
 | ------------ | --------------------- |
-| Ruby 3.1.4   | Windows, MacOS, Linux |
-| Ruby 3.2.3   | Windows, MacOS, Linux |
-| Ruby 3.3.0   | Windows, MacOS, Linux |
+| Ruby 3.4.x   | Windows, MacOS, Linux |
+| Ruby 4.0.x   | Windows, MacOS, Linux |
 
 ### Install
 

openfeature-sdk.gemspec

@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.description = "Ruby SDK for an the specifications for the open standard of feature flag management"
   spec.homepage = "https://github.com/open-feature/openfeature-ruby"
   spec.license = "Apache-2.0"
-  spec.required_ruby_version = ">= 3.1"
+  spec.required_ruby_version = ">= 3.4"
 
   spec.metadata["homepage_uri"] = spec.homepage
   spec.metadata["source_code_uri"] = "https://github.com/open-feature/openfeature-ruby"
@@ -38,6 +38,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "standard"
   spec.add_development_dependency "standard-performance"
   spec.add_development_dependency "simplecov", "~> 0.22.0"
-  spec.add_development_dependency "simplecov-cobertura", "~> 2.1.0"
+  spec.add_development_dependency "simplecov-cobertura", "~> 3.0"
   spec.add_development_dependency "timecop", "~> 0.9.10"
 end

spec/open_feature/sdk/hooks/hook_executor_spec.rb

@@ -155,6 +155,7 @@ def before(hook_context:, hints:)
 
         hook2_class = Class.new do
           include OpenFeature::SDK::Hooks::Hook
+
           define_method(:initialize) { |log| @log = log }
 
           define_method(:before) do |hook_context:, hints:|

spec/support/recording_hook_helper.rb

@@ -4,6 +4,7 @@ module RecordingHookHelper
   def recording_hook(name, call_log)
     Class.new do
       include OpenFeature::SDK::Hooks::Hook
+
       define_method(:hook_name) { name }
 
       define_method(:before) do |hook_context:, hints:|