drop support for deprecated rails versions

.travis.yml

@@ -18,8 +18,6 @@ before_install:
   - "travis_retry gem update --system"
   - "travis_retry gem install bundler"
 gemfile:
-  - gemfiles/rails40.gemfile
-  - gemfiles/rails41.gemfile
   - gemfiles/rails42.gemfile
   - gemfiles/rails50.gemfile
   - gemfiles/rails51.gemfile
@@ -34,18 +32,6 @@ matrix:
       gemfile: gemfiles/rails51.gemfile
     - rvm: 2.1
       gemfile: gemfiles/rails52.gemfile
-    - rvm: 2.4.3
-      gemfile: gemfiles/rails40.gemfile
-    - rvm: 2.4.3
-      gemfile: gemfiles/rails41.gemfile
-    - rvm: 2.5.0
-      gemfile: gemfiles/rails40.gemfile
-    - rvm: 2.5.0
-      gemfile: gemfiles/rails41.gemfile
-    - rvm: ruby-head
-      gemfile: gemfiles/rails40.gemfile
-    - rvm: ruby-head
-      gemfile: gemfiles/rails41.gemfile
   fast_finish: true
 branches:
   only:

Appraisals

@@ -1,14 +1,3 @@
-appraise 'rails40' do
-  gem 'rails', '~> 4.0.0'
-  gem 'protected_attributes'
-  gem 'test-unit'
-end
-
-appraise 'rails41' do
-  gem 'rails', '~> 4.1.0'
-  gem 'protected_attributes'
-end
-
 appraise 'rails42' do
   gem 'rails', '~> 4.2.0'
   gem 'protected_attributes'

CHANGELOG.md

@@ -7,6 +7,8 @@ Breaking changes
 - removed `audited_columns`, `non_audited_columns`, `auditing_enabled=` instance methods, 
   use class methods instead
   [#424](https://github.com/collectiveidea/audited/pull/424)
+- removed rails 4.1 and 4.0 support
+  [#431](https://github.com/collectiveidea/audited/pull/431)
 
 Added
 

README.md

@@ -3,7 +3,7 @@ Audited [![Build Status](https://secure.travis-ci.org/collectiveidea/audited.svg
 
 **Audited** (previously acts_as_audited) is an ORM extension that logs all changes to your models. Audited can also record who made those changes, save comments and associate models related to the changes.
 
-Audited currently (4.x) works with Rails 5.1, 5.0 and 4.2. It may work with 4.1 and 4.0, but this is not guaranteed.
+Audited currently (4.x) works with Rails 5.1, 5.0 and 4.2.
 
 For Rails 3, use gem version 3.0 or see the [3.0-stable branch](https://github.com/collectiveidea/audited/tree/3.0-stable).
 

audited.gemspec

@@ -15,12 +15,11 @@ Gem::Specification.new do |gem|
   gem.license     = 'MIT'
 
   gem.files         = `git ls-files`.split($\).reject{|f| f =~ /(\.gemspec)/ }
-  gem.require_paths = ['lib']
 
-  gem.add_dependency 'activerecord', '>= 4.0', '< 5.2'
+  gem.add_dependency 'activerecord', '>= 4.2', '< 5.2'
 
   gem.add_development_dependency 'appraisal'
-  gem.add_development_dependency 'rails', '>= 4.0', '< 5.2'
+  gem.add_development_dependency 'rails', '>= 4.2', '< 5.2'
   gem.add_development_dependency 'rspec-rails', '~> 3.5'
 
   # JRuby support for the test ENV

lib/audited/auditor.rb

@@ -162,7 +162,6 @@ def combine_audits(audits_to_combine)
       def revision_with(attributes)
         dup.tap do |revision|
           revision.id = id
-          revision.send :instance_variable_set, '@attributes', self.attributes if rails_below?('4.2.0')
           revision.send :instance_variable_set, '@new_record', destroyed?
           revision.send :instance_variable_set, '@persisted', !destroyed?
           revision.send :instance_variable_set, '@readonly', false
@@ -185,10 +184,6 @@ def revision_with(attributes)
         end
       end
 
-      def rails_below?(rails_version)
-        Gem::Version.new(Rails::VERSION::STRING) < Gem::Version.new(rails_version)
-      end
-
       private
 
       def audited_changes

spec/audited/auditor_spec.rb

@@ -192,7 +192,7 @@ def non_column_attr=(val)
       expect(user.audits.last.audited_changes.keys).to eq(%w{non_column_attr})
     end
 
-    if ActiveRecord::Base.connection.adapter_name == 'PostgreSQL' && Rails.version >= "4.2.0.0" # Postgres json and jsonb support was added in Rails 4.2
+    if ActiveRecord::Base.connection.adapter_name == 'PostgreSQL'
       describe "'json' and 'jsonb' audited_changes column type" do
         let(:migrations_path) { SPEC_ROOT.join("support/active_record/postgres") }