gem: drop support for Rubies < 3

.github/workflows/ci.yml

@@ -17,7 +17,6 @@ jobs:
     strategy:
       matrix:
         ruby-version:
-        - '2.7'
         - '3.0'
         - '3.1'
         - '3.2'

.rubocop.yml

@@ -3,7 +3,7 @@ require:
 - rubocop-rspec
 
 AllCops:
-  TargetRubyVersion: '2.7'
+  TargetRubyVersion: '3.0'
   NewCops: enable
 
 Gemspec/DevelopmentDependencies:

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 3.9.0
+
+IMPROVEMENTS:
+
+- Drop EOL Ruby 2.7 support, now minimum version supported is Ruby 3.0
+
 ## 3.8.2 (April 1st, 2023)
 
 OTHER:

dyndnsd.gemspec

@@ -25,7 +25,7 @@ Gem::Specification.new do |s|
   s.executables = ['dyndnsd']
   s.extra_rdoc_files = Dir['README.md', 'CHANGELOG.md', 'LICENSE']
 
-  s.required_ruby_version = '>= 2.7'
+  s.required_ruby_version = '>= 3.0'
 
   s.add_runtime_dependency 'async', '~> 1.31.0'
   s.add_runtime_dependency 'async-dns', '~> 1.3.0'