diff --git a/lib/github_changelog_generator.rb b/lib/github_changelog_generator.rb
index 9e37a75..646c20f 100755
--- a/lib/github_changelog_generator.rb
+++ b/lib/github_changelog_generator.rb
@@ -231,6 +231,11 @@ module GitHubChangelogGenerator
 
     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 @@ module GitHubChangelogGenerator
         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
diff --git a/lib/github_changelog_generator/generator.rb b/lib/github_changelog_generator/generator.rb
index 5680f41..0c08a3d 100644
--- a/lib/github_changelog_generator/generator.rb
+++ b/lib/github_changelog_generator/generator.rb
@@ -10,10 +10,10 @@ module GitHubChangelogGenerator
 
       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 4c9c4e0..b927b9a 100644
--- a/lib/github_changelog_generator/parser.rb
+++ b/lib/github_changelog_generator/parser.rb
@@ -6,7 +6,7 @@ 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 @@ module GitHubChangelogGenerator
         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