diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..ad557c5
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,2 @@
+gem "acts_as_list" 
+#gem "protected_attributes"
diff --git a/app/models/issue_checklist.rb b/app/models/issue_checklist.rb
index cf5ce49..2f99d45 100644
--- a/app/models/issue_checklist.rb
+++ b/app/models/issue_checklist.rb
@@ -4,8 +4,8 @@ class IssueChecklist < ActiveRecord::Base
   has_one :comment, as: :commented, dependent: :delete
   acts_as_list
 
-  attr_accessible :is_done, :subject
-  attr_protected :id
+  #attr_accessible :is_done, :subject
+#  attr_protected :id
 
   validates_presence_of :subject
 
diff --git a/app/views/issues/_checklist.html.erb b/app/views/issues/_checklist.html.erb
index 1ed515c..a231cd7 100644
--- a/app/views/issues/_checklist.html.erb
+++ b/app/views/issues/_checklist.html.erb
@@ -14,7 +14,7 @@
 <% end %>
 
 <% content_for :header_tags do %>
-  <% if Redmine::VERSION::MAJOR == 3 || (Redmine::VERSION::MAJOR == 2 && Redmine::VERSION::MINOR >= 1) %>
+  <% if Redmine::VERSION::MAJOR >= 3 || (Redmine::VERSION::MAJOR == 2 && Redmine::VERSION::MINOR >= 1) %>
     <%= javascript_include_tag 'jquery.klass.js', plugin: 'redmine_issue_checklist' %>
     <%= javascript_include_tag 'issue_checklist.jquery.js', plugin: 'redmine_issue_checklist' %>
   <% else %>
diff --git a/app/views/issues/_checklist_form.html.erb b/app/views/issues/_checklist_form.html.erb
index ca5e542..5d1e0cd 100644
--- a/app/views/issues/_checklist_form.html.erb
+++ b/app/views/issues/_checklist_form.html.erb
@@ -20,7 +20,7 @@
 
 
 <% content_for :header_tags do %>
-  <% if Redmine::VERSION::MAJOR == 3 || (Redmine::VERSION::MAJOR == 2 && Redmine::VERSION::MINOR >= 1) %>
+  <% if Redmine::VERSION::MAJOR >= 3 || (Redmine::VERSION::MAJOR == 2 && Redmine::VERSION::MINOR >= 1) %>
     <%= javascript_include_tag 'jquery.klass.js', plugin: 'redmine_issue_checklist' %>
     <%= javascript_include_tag 'issue_checklist.jquery.js', plugin: 'redmine_issue_checklist' %>
   <% else %>
diff --git a/db/migrate/20111010202847_create_issue_checklists.rb b/db/migrate/20111010202847_create_issue_checklists.rb
index e03181b..088b36d 100644
--- a/db/migrate/20111010202847_create_issue_checklists.rb
+++ b/db/migrate/20111010202847_create_issue_checklists.rb
@@ -1,4 +1,4 @@
-class CreateIssueChecklists < ActiveRecord::Migration
+class CreateIssueChecklists < ActiveRecord::Migration[4.2]
   def self.up
     create_table :issue_checklists do |t|
       t.boolean :is_done, default: false
diff --git a/init.rb b/init.rb
index 2762b0d..1bd0715 100644
--- a/init.rb
+++ b/init.rb
@@ -1,7 +1,9 @@
 require 'redmine'
+require 'acts_as_list'
 
 require 'redmine_issue_checklist/redmine_issue_checklist'
 
+
 Redmine::Plugin.register :redmine_issue_checklist do
   name 'Redmine Issue Checklist Plugin'
   author 'Kirill Bezrukov'
diff --git a/lib/redmine_issue_checklist/patches/issue_patch.rb b/lib/redmine_issue_checklist/patches/issue_patch.rb
index 7d485b5..4e2e2d0 100644
--- a/lib/redmine_issue_checklist/patches/issue_patch.rb
+++ b/lib/redmine_issue_checklist/patches/issue_patch.rb
@@ -8,7 +8,9 @@ module IssuePatch
       def self.included(base) # :nodoc:
         base.send(:include, InstanceMethods)
         base.class_eval do
-          alias_method_chain :copy_from, :checklist
+
+          alias_method :copy_from_without_checklist,:copy_from
+          alias_method :copy_from, :copy_from_with_checklist
           has_many :checklist, class_name: 'IssueChecklist', dependent: :destroy
         end
 
diff --git a/lib/redmine_issue_checklist/patches/issues_controller_patch.rb b/lib/redmine_issue_checklist/patches/issues_controller_patch.rb
index b6bbeee..7eaa53c 100644
--- a/lib/redmine_issue_checklist/patches/issues_controller_patch.rb
+++ b/lib/redmine_issue_checklist/patches/issues_controller_patch.rb
@@ -4,7 +4,9 @@ module IssuesControllerPatch
       extend ActiveSupport::Concern
 
       included do
-        alias_method_chain :build_new_issue_from_params, :checklist
+#        alias_method_chain :build_new_issue_from_params, :checklist
+         alias_method :build_new_issue_from_params_without_checklist,:build_new_issue_from_params       
+         alias_method :build_new_issue_from_params, :build_new_issue_from_params_with_checklist
       end
 
       def build_new_issue_from_params_with_checklist