Require Ruby version 2.6 or greater

Older versions are EOL'd

Author: cjlarose

.github/workflows/tests.yml

@@ -17,8 +17,6 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
-          - 2.4
-          - 2.5
           - 2.6
           - 2.7
           - jruby

Appraisals

@@ -36,32 +36,22 @@ appraise 'rails-5.2' do
   gem 'sqlite3', '< 1.4.0', platform: :ruby
 end
 
-# Rails 6.x requires Ruby >= 2.5.0
-if (RUBY_ENGINE == 'ruby' && RUBY_VERSION >= '2.5.0') || RUBY_ENGINE != 'ruby'
-  appraise 'rails-6.0' do
-    gem 'activerecord-jdbcsqlite3-adapter', '~> 60.1', platform: :jruby
-    gem 'bootsnap', '~> 1.4'
-    gem 'rails', '6.0.3.1'
-    gem 'rspec-rails', '~> 3.7'
-    gem 'sqlite3', '~> 1.4.0', platform: :ruby
-  end
-else
-  puts 'Skipping rails-6.0 for Ruby < 2.5'
+appraise 'rails-6.0' do
+  gem 'activerecord-jdbcsqlite3-adapter', '~> 60.1', platform: :jruby
+  gem 'bootsnap', '~> 1.4'
+  gem 'rails', '6.0.3.1'
+  gem 'rspec-rails', '~> 3.7'
+  gem 'sqlite3', '~> 1.4.0', platform: :ruby
 end
 
 # Test rails 6.1 with psych >= 4
-# Rails 6.x requires Ruby >= 2.5.0
-if (RUBY_ENGINE == 'ruby' && RUBY_VERSION >= '2.5.0') || RUBY_ENGINE != 'ruby'
-  appraise 'rails-6.1' do
-    gem 'activerecord-jdbcsqlite3-adapter', '~> 61.1', platform: :jruby
-    gem 'bootsnap', '>= 1.4.4'
-    gem 'rails', '6.1.4'
-    gem 'rspec-rails', '~> 5.0'
-    gem 'sqlite3', '~> 1.4', platform: :ruby
-    gem 'psych', '>= 4'
-  end
-else
-  puts 'Skipping rails-6.1 for Ruby < 2.5'
+appraise 'rails-6.1' do
+  gem 'activerecord-jdbcsqlite3-adapter', '~> 61.1', platform: :jruby
+  gem 'bootsnap', '>= 1.4.4'
+  gem 'rails', '6.1.4'
+  gem 'rspec-rails', '~> 5.0'
+  gem 'sqlite3', '~> 1.4', platform: :ruby
+  gem 'psych', '>= 4'
 end
 
 appraise 'sinatra' do

README.md

@@ -24,7 +24,7 @@ Config helps you easily manage environment specific settings in an easy and usab
 Current version supports and is [tested](.github/workflows/tests.yml#L19) for the following interpreters and frameworks:
 
 * Interpreters
-  * [Ruby](https://www.ruby-lang.org) `>= 2.4`
+  * [Ruby](https://www.ruby-lang.org) `>= 2.6`
   * [JRuby](https://www.jruby.org) `>= 9.2`
   * [TruffleRuby](https://github.com/oracle/truffleruby) `>= 19.3`
 * Application frameworks
@@ -34,6 +34,8 @@ Current version supports and is [tested](.github/workflows/tests.yml#L19) for th
 
 For Ruby `2.0` to `2.3` or Rails `3` to `4.1` use version `1.x` of this gem. For older versions of Rails or Ruby use [AppConfig](http://github.com/fredwu/app_config).
 
+For Ruby `2.4` or `2.5`, use version `3.x` of this gem.
+
 ## Installing
 
 ### Installing on Rails

config.gemspec

@@ -24,7 +24,7 @@ Donate: \e[34mhttps://opencollective.com/rubyconfig/donate\e[0m\n"
   s.files.select! { |file| /(^lib\/|^\w+.md$|\.gemspec$)/ =~ file }
 
   s.require_paths         = ['lib']
-  s.required_ruby_version = '>= 2.4.0'
+  s.required_ruby_version = '>= 2.6.0'
 
   s.add_dependency 'deep_merge', '~> 1.2', '>= 1.2.1'
   s.add_dependency 'dry-validation', '~> 1.0', '>= 1.0.0'