Drop support for Ruby 2.5 and 2.6

.github/workflows/liquid.yml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       matrix:
         entry:
-          - { ruby: 2.5, allowed-failure: false } # minimum supported
+          - { ruby: 2.7, allowed-failure: false } # minimum supported
           - { ruby: 3.1, allowed-failure: false } # latest
           - { ruby: ruby-head, allowed-failure: true }
     name: test (${{ matrix.entry.ruby }})

.rubocop.yml

@@ -10,7 +10,7 @@ Performance:
   Enabled: true
 
 AllCops:
-  TargetRubyVersion: 2.5
+  TargetRubyVersion: 2.7
   NewCops: disable
   Exclude:
     - 'vendor/bundle/**/*'

History.md

@@ -2,6 +2,9 @@
 
 ## 5.4.0 (unreleased)
 
+### Breaking Changes
+* Require Ruby >= 2.7 (#1578) [Andy Waite]
+
 ### Features
 * Allow `#` to be used as an inline comment tag (#1498) [CP Clermont]
 

liquid.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |s|
   s.license     = "MIT"
   # s.description = "A secure, non-evaling end user template engine with aesthetic markup."
 
-  s.required_ruby_version     = ">= 2.5.0"
+  s.required_ruby_version     = ">= 2.7.0"
   s.required_rubygems_version = ">= 1.3.7"
 
   s.metadata['allowed_push_host'] = 'https://rubygems.org'