only ruby 3.x are supported

cxn03651 · Dec 30, 2023 · 6f00031 · 6f00031
1 parent 343b65e
commit 6f00031
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diff --git a/.github/workflows/test-suite.yml b/.github/workflows/test-suite.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [3.2, 3.1, '3.0', 2.7, 2.6, 2.5, 2.4, 2.3, 2.2, 2.1, '2.0', 1.9]
+        ruby: [3.2, 3.1, '3.0']
 
     steps:
     - uses: actions/checkout@v2

diff --git a/writeexcel.gemspec b/writeexcel.gemspec
@@ -17,6 +17,7 @@ Gem::Specification.new do |gem|
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
+  gem.required_ruby_version = '>= 3.0.0'
   gem.add_development_dependency 'minitest'
   gem.add_development_dependency 'rake'
   gem.extra_rdoc_files = [