Bump min Ruby to 2.7

.github/workflows/tests.yml

@@ -1,6 +1,6 @@
 name: Squib Unit Tests
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   test:
@@ -8,9 +8,9 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu, macos]
-        ruby: [2.5, 2.6, 2.7, 3.0, head]
+        ruby: [2.7, 3.0, head]
     runs-on: ${{ matrix.os }}-latest
-    continue-on-error: ${{ endsWith(matrix.ruby, 'head') || matrix.ruby == 'debug'  || (matrix.ruby == '3.0' && matrix.os == 'macos')}}
+    continue-on-error: ${{ endsWith(matrix.ruby, 'head') || (matrix.ruby == '3.0' && matrix.os == 'macos')}}
     steps:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1

CHANGELOG.md

@@ -10,6 +10,7 @@ Features:
 
 Compatibility:
 * Because of the features above, the new default behavior is to warn instead of errors on a missing file
+* Ruby 2.7 is officially our minimum Ruby, since Ruby 2.6 will EOL in about six months from now
 
 ## v0.17.1 / 2021-09-07
 

squib.gemspec

@@ -7,7 +7,7 @@ Gem::Specification.new do |spec|
   spec.specification_version = 2 if spec.respond_to? :specification_version=
   spec.required_rubygems_version = Gem::Requirement.new('>= 0') if spec.respond_to? :required_rubygems_version=
   spec.rubygems_version = '2.2.2'
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.7.0'
 
   spec.name          = 'squib'
   spec.version       = Squib::VERSION