Rakefile in watir-webdriver-0.6.1 vs Rakefile in watir-webdriver-0.6.2

@@ -1,9 +1,10 @@
 $LOAD_PATH.unshift File.expand_path("../lib", __FILE__)
 
 require 'rubygems'
 require 'bundler'
+require 'watir-webdriver/version'
 Bundler::GemHelper.install_tasks
 
 require 'rspec/core/rake_task'
 RSpec::Core::RakeTask.new(:spec) do |spec|
   spec.ruby_opts  = "-I lib:spec"
@@ -87,8 +88,29 @@
 
 require 'yard'
 require "yard/handlers/watir"
 YARD::Rake::YardocTask.new do |task|
   task.options = %w[--debug] # this is pretty slow, so nice with some output
+end
+
+namespace :changes do
+  task :differ do
+    require './support/version_differ'
+  end
+
+  desc 'Update CHANGES.md'
+  task :update => :differ do
+    VersionDiffer.new.update('CHANGES.md')
+  end
+
+  desc 'Generate CHANGES.md from scratch'
+  task :generate => :differ do
+    VersionDiffer.new.generate('CHANGES.md')
+  end
+
+  desc 'Print latest diff'
+  task :print => :differ do
+    VersionDiffer.new.print_latest(STDOUT)
+  end
 end
 
 load "spec/watirspec/watirspec.rake" if File.exist?("spec/watirspec/watirspec.rake")