Drop support for Ruby 2.6 (reached EoL on 2022-03-31)

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
         uses: ruby/setup-ruby@v1
         with:
           # See "Lowest supported ruby version" in CONTRIBUTING.md
-          ruby-version: '2.6'
+          ruby-version: '2.7'
       - name: Bundle
         run: |
           gem install bundler
@@ -66,12 +66,7 @@ jobs:
         # in case it still produces any deprecation warnings.
         #
         # See "Lowest supported ruby version" in CONTRIBUTING.md
-        ruby: [ '2.6', '2.7', '3.0', '3.1' ]
-
-        exclude:
-          # rails 7 requires ruby > 2.7
-          - ruby: '2.6'
-            gemfile: 'rails_7.0'
+        ruby: [ '2.7', '3.0', '3.1' ]
     steps:
       - name: Checkout source
         uses: actions/checkout@v2

.rubocop.yml

@@ -23,7 +23,7 @@ AllCops:
   NewCops: enable
 
   # See "Lowest supported ruby version" in CONTRIBUTING.md
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 2.7
 
 Layout/ArgumentAlignment:
   EnforcedStyle: with_fixed_indentation

CHANGELOG.md

@@ -12,6 +12,7 @@ recommendations of [keepachangelog.com](http://keepachangelog.com/).
 ### Dependencies
 
 - Drop support for Rails 5.2, which reached EoL on 2022-06-01
+- Drop support for Ruby 2.6, which reached EoL on 2022-03-31
 
 ### Added
 

README.md

@@ -90,7 +90,7 @@ Choose version:
 
 | paper_trail | branch     | ruby     | activerecord  |
 |-------------|------------|----------|---------------|
-| unreleased  | master     | >= 2.6.0 | >= 6.0, < 7.1 |
+| unreleased  | master     | >= 2.7.0 | >= 6.0, < 7.1 |
 | 13          | 13-stable  | >= 2.6.0 | >= 5.2, < 7.1 |
 | 12          | 12-stable  | >= 2.6.0 | >= 5.2, < 7.1 |
 | 11          | 11-stable  | >= 2.4.0 | >= 5.2, < 6.1 |

paper_trail.gemspec

@@ -43,7 +43,7 @@ has been destroyed.
   # about 3 years, per https://www.ruby-lang.org/en/downloads/branches/
   #
   # See "Lowest supported ruby version" in CONTRIBUTING.md
-  s.required_ruby_version = ">= 2.6.0"
+  s.required_ruby_version = ">= 2.7.0"
 
   # We no longer specify a maximum activerecord version.
   # See discussion in paper_trail/compatibility.rb

spec/models/widget_spec.rb

@@ -138,7 +138,7 @@ RSpec.describe Widget, type: :model, versioning: true do
       it "have versions that are not live" do
         widget = described_class.create(name: "Henry")
         widget.update(name: "Harry")
-        widget.versions.map(&:reify).compact.each do |v|
+        widget.versions.filter_map(&:reify).each do |v|
           expect(v.paper_trail).not_to be_live
         end
       end