diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9b1b6fb16..7ab6a16e6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [1.2.4] (https://github.com/skywinder/Github-Changelog-Generator/tree/1.2.4)
+#### 16/12/14
+- *Merged pull-request:* Fix crash when user is NULL [\#40](https://github.com/skywinder/Github-Changelog-Generator/pull/40) ([skywinder](https://github.com/skywinder))
+
+- *Merged pull-request:* Implement async fetching [\#39](https://github.com/skywinder/Github-Changelog-Generator/pull/39) ([skywinder](https://github.com/skywinder))
+
+- *Implemented enhancement:* Add ability to run with one parameter instead -u -p [\#38](https://github.com/skywinder/Github-Changelog-Generator/issues/38)
+
+- *Implemented enhancement:* Detailed output [\#33](https://github.com/skywinder/Github-Changelog-Generator/issues/33)
+
+- *Fixed bug:* Docs lacking or basic behavior not as advertised [\#30](https://github.com/skywinder/Github-Changelog-Generator/issues/30)
+
+## [1.2.3] (https://github.com/skywinder/Github-Changelog-Generator/tree/1.2.3)
+#### 16/12/14
+- *Fixed bug:* Encapsulate \[ \> \* \_ \ \] signs in issues names [\#34](https://github.com/skywinder/Github-Changelog-Generator/issues/34)
+
 ## [1.2.2] (https://github.com/skywinder/Github-Changelog-Generator/tree/1.2.2)
 #### 10/12/14
 - *Merged pull-request:* Add a Bitdeli Badge to README [\#36](https://github.com/skywinder/Github-Changelog-Generator/pull/36) ([bitdeli-chef](https://github.com/bitdeli-chef))
diff --git a/lib/github_changelog_generator.rb b/lib/github_changelog_generator.rb
index 300c5bb51..646c20fa1 100755
--- a/lib/github_changelog_generator.rb
+++ b/lib/github_changelog_generator.rb
@@ -28,12 +28,12 @@ def initialize
 
       github_token
 
-      if @github_token.nil?
-        @github = Github.new per_page: PER_PAGE_NUMBER
-      else
-        @github = Github.new oauth_token: @github_token,
-                             per_page: PER_PAGE_NUMBER
-      end
+      github_options = {per_page: PER_PAGE_NUMBER}
+      github_options[:oauth_token] = @github_token unless @github_token.nil?
+      github_options[:endpoint] = options[:github_endpoint] unless options[:github_endpoint].nil?
+      github_options[:site] = options[:github_endpoint] unless options[:github_site].nil?
+
+      @github = Github.new github_options
 
       @generator = Generator.new(@options)
 
@@ -231,6 +231,11 @@ def github_token
 
     def generate_log_between_tags(older_tag, newer_tag)
 
+      if newer_tag.nil?
+        puts "Can't find tag -> terminate"
+        exit 1
+      end
+
       newer_tag_time = self.get_time_of_tag(newer_tag)
       newer_tag_name = newer_tag['name']
 
@@ -243,6 +248,43 @@ def generate_log_between_tags(older_tag, newer_tag)
         filtered_issues = delete_by_time(@issues, :closed_at, newer_tag_time, older_tag_time)
       end
 
+
+      if @options[:filter_issues_by_milestone]
+        #delete excess irrelevant issues (according milestones)
+        filtered_issues.select! { |issue|
+          if issue.milestone.nil?
+            true
+          else
+            #check, that this milestone in tag list:
+            milestone_is_tag = @all_tags.find { |tag|
+              tag.name == issue.milestone.title
+            }
+            milestone_is_tag.nil?
+          end
+
+        }
+
+        #add missed issues (according milestones)
+        issues_to_add = @issues.select { |issue|
+          if issue.milestone.nil?
+            false
+          else
+            #check, that this milestone in tag list:
+            milestone_is_tag = @all_tags.find { |tag|
+              tag.name == issue.milestone.title
+            }
+
+            if milestone_is_tag.nil?
+              false
+            else
+              issue.milestone.title == newer_tag_name
+            end
+          end
+        }
+
+        filtered_issues |= issues_to_add
+      end
+
       self.create_log(filtered_pull_requests, filtered_issues, newer_tag_name, newer_tag_time)
 
     end
@@ -276,8 +318,10 @@ def delete_by_time(array, hash_key, newer_tag_time, older_tag_time = nil)
 # @return [String]
     def create_log(pull_requests, issues, tag_name, tag_time)
 
+      github_site = options[:github_site] || 'https://github.com'
+
       # Generate tag name and link
-      log = "## [#{tag_name}] (https://github.com/#{@options[:user]}/#{@options[:project]}/tree/#{tag_name})\n"
+      log = "## [#{tag_name}] (#{github_site}/#{@options[:user]}/#{@options[:project]}/tree/#{tag_name})\n"
 
       #Generate date string:
       time_string = tag_time.strftime @options[:format]
diff --git a/lib/github_changelog_generator/generator.rb b/lib/github_changelog_generator/generator.rb
index 5680f4118..0c08a3d4e 100644
--- a/lib/github_changelog_generator/generator.rb
+++ b/lib/github_changelog_generator/generator.rb
@@ -10,10 +10,10 @@ def get_string_for_pull_request(pull_request)
 
       merge = "#{@options[:merge_prefix]}#{encapsulated_title} [\\##{pull_request[:number]}](#{pull_request.html_url})"
       if @options[:author]
-        if !pull_request.user.nil?
-          merge += " ([#{pull_request.user.login}](#{pull_request.user.html_url}))\n\n"
-        else
+        if pull_request.user.nil?
           merge += " ({Null user})\n\n"
+        else
+          merge += " ([#{pull_request.user.login}](#{pull_request.user.html_url}))\n\n"
         end
       else
         merge += "\n\n"
diff --git a/lib/github_changelog_generator/parser.rb b/lib/github_changelog_generator/parser.rb
index e193b9b85..b927b9a48 100644
--- a/lib/github_changelog_generator/parser.rb
+++ b/lib/github_changelog_generator/parser.rb
@@ -1,12 +1,12 @@
 #!/usr/bin/env ruby
 require 'optparse'
-require 'PP'
+require 'pp'
 require_relative 'version'
 
 module GitHubChangelogGenerator
   class Parser
     def self.parse_options
-      options = {:tag1 => nil, :tag2 => nil, :format => '%d/%m/%y', :output => 'CHANGELOG.md', :labels => %w(bug enhancement), :pulls => true, :issues => true, :verbose => true, :add_issues_wo_labels => true, :merge_prefix => '*Merged pull-request:* ', :author => true, :pull_request_labels => nil}
+      options = {:tag1 => nil, :tag2 => nil, :format => '%d/%m/%y', :output => 'CHANGELOG.md', :labels => %w(bug enhancement), :pulls => true, :issues => true, :verbose => true, :add_issues_wo_labels => true, :merge_prefix => '*Merged pull-request:* ', :author => true, :pull_request_labels => nil, :filter_issues_by_milestone => true}
 
       parser = OptionParser.new { |opts|
         opts.banner = 'Usage: changelog_generator [options]'
@@ -37,6 +37,9 @@ def self.parse_options
         opts.on('--[no-]pull-requests', 'Include pull-requests to changelog. Default is true') do |v|
           options[:pulls] = v
         end
+        opts.on('--[no-]filter-issues-by-milestone', 'Use milestone to detect when issue was resolved. Default is true') do |last|
+          options[:filter_issues_by_milestone] = last
+        end
         opts.on('--[no-]author', 'Add author of pull-request in the end. Default is true') do |author|
           options[:last] = author
         end
@@ -46,6 +49,12 @@ def self.parse_options
         opts.on('--labels-pr x,y,z', Array, 'Only pull requests with specified labels will be included to changelog. Default is nil') do |list|
           options[:pull_request_labels] = list
         end
+        opts.on('--github-site [URL]', 'The Enterprise Github site on which your project is hosted.') do |last|
+          options[:github_site] = last
+        end
+        opts.on('--github-api [URL]', 'The enterprise endpoint to use for your Github API.') do |last|
+          options[:github_endpoint] = last
+        end
         opts.on('-v', '--version', 'Print version number') do |v|
           puts "Version: #{GitHubChangelogGenerator::VERSION}"
           exit
@@ -59,8 +68,9 @@ def self.parse_options
       parser.parse!
 
       if ARGV[0] && !ARGV[1]
+        github_site = options[:github_site] ? options[:github_site] : 'github.com'
         # this match should parse https://github.com/skywinder/Github-Changelog-Generator and skywinder/Github-Changelog-Generator to user and name
-        match = /(?:.+github\.com\/)?(.+)\/(.+)/.match(ARGV[0])
+        match = /(?:.+#{Regexp.escape(github_site)}\/)?(.+)\/(.+)/.match(ARGV[0])
 
         if match[2].nil?
           exit
@@ -94,4 +104,4 @@ def self.parse_options
       options
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/github_changelog_generator/version.rb b/lib/github_changelog_generator/version.rb
index 4d93f7471..78538567d 100644
--- a/lib/github_changelog_generator/version.rb
+++ b/lib/github_changelog_generator/version.rb
@@ -1,3 +1,3 @@
 module GitHubChangelogGenerator
-  VERSION = '1.2.4'
+  VERSION = '1.2.5'
 end