Updates for version 0.4.0 with minimum Ruby version 3.0.

Author: gkellogg

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [2.6, 2.7, '3.0', 3.1, 3.2, ruby-head, jruby]
+        ruby: ['3.0', 3.1, 3.2, ruby-head, jruby]
     steps:
       - name: Clone repository
         uses: actions/checkout@v3
@@ -33,6 +33,6 @@ jobs:
         run: ruby --version; bundle exec rspec spec || $ALLOW_FAILURES
       - name: Coveralls GitHub Action
         uses: coverallsapp/github-action@master
-        if: "matrix.ruby == '3.0'"
+        if: "matrix.ruby == '3.2'"
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}

README.md

@@ -66,7 +66,7 @@ Full documentation available on [GitHub](https://dryruby.github.io/json-canonica
 * {JSON::Canonicalization}
 
 ## Dependencies
-* [Ruby](http://ruby-lang.org/) (>= 2.6)
+* [Ruby](http://ruby-lang.org/) (>= 3.0)
 * [JSON](https://rubygems.org/gems/json) (>= 2.6)
 
 ## Author

VERSION

@@ -1 +1 @@
-0.3.2
+0.4.0

json-canonicalization.gemspec

@@ -23,9 +23,9 @@ Gem::Specification.new do |gem|
   gem.files                 = %w(AUTHORS README.md LICENSE VERSION) + Dir.glob('lib/**/*.rb')
   gem.test_files            = Dir.glob('spec/**/*.rb') + Dir.glob('spec/**/*.json')
 
-  gem.required_ruby_version = '>= 2.6'
+  gem.required_ruby_version = '>= 3.0'
   gem.requirements          = []
-  gem.add_development_dependency 'rspec',           '~> 3.10'
+  gem.add_development_dependency 'rspec',           '~> 3.12'
   gem.add_development_dependency 'yard' ,           '~> 0.9'
 
   gem.post_install_message  = nil