diff --git a/app/models/issue_query.rb b/app/models/issue_query.rb
--- a/app/models/issue_query.rb
+++ b/app/models/issue_query.rb
@@ -124,12 +124,12 @@ class IssueQuery < Query
     add_available_filter "priority_id",
       :type => :list, :values => IssuePriority.all.collect{|s| [s.name, s.id.to_s] }
 
-    author_values = []
-    author_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
-    author_values += users.collect{|s| [s.name, s.id.to_s] }
+    user_values = []
+    user_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
+    user_values += users.collect{|s| [s.name, s.id.to_s] }
     add_available_filter("author_id",
-      :type => :list, :values => author_values
-    ) unless author_values.empty?
+      :type => :list, :values => user_values
+    ) unless user_values.empty?
 
     assigned_to_values = []
     assigned_to_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
@@ -194,6 +194,16 @@ class IssueQuery < Query
         :values => subprojects.collect{|s| [s.name, s.id.to_s] }
     end
 
+    unless user_values.empty?
+      add_available_filter("updated_by",
+        :type => :list, :values => user_values
+      )
+
+      add_available_filter("last_updated_by",
+        :type => :list, :values => user_values
+      )
+    end
+
     add_custom_fields_filters(issue_custom_fields)
 
     add_associations_custom_fields_filters :project, :author, :assigned_to, :fixed_version
@@ -504,6 +514,20 @@ class IssueQuery < Query
     end
   end
 
+  def sql_for_updated_by_field(field, operator, value)
+    db_table = Journal.table_name
+
+    "#{Issue.table_name}.id IN (SELECT #{db_table}.journalized_id FROM #{db_table} WHERE #{db_table}.journalized_type='Issue' AND #{db_table}.journalized_id = #{Issue.table_name}.id AND " +
+      sql_for_field(field, operator, value, db_table, 'user_id') + ')'
+  end
+
+  def sql_for_last_updated_by_field(field, operator, value)
+    db_table = Journal.table_name
+
+    "#{Issue.table_name}.id IN (SELECT max(#{db_table}.journalized_id) FROM #{db_table} WHERE #{db_table}.journalized_type='Issue' AND #{db_table}.created_on = #{Issue.table_name}.updated_on AND #{db_table}.journalized_id = #{Issue.table_name}.id AND " +
+      sql_for_field(field, operator, value, db_table, 'user_id') + ')'
+  end
+
   def sql_for_relations(field, operator, value, options={})
     relation_options = IssueRelation::TYPES[field]
     return relation_options unless relation_options
diff --git a/app/models/query.rb b/app/models/query.rb
--- a/app/models/query.rb
+++ b/app/models/query.rb
@@ -696,7 +696,7 @@ class Query < ActiveRecord::Base
       operator = operator_for(field)
 
       # "me" value substitution
-      if %w(assigned_to_id author_id user_id watcher_id).include?(field)
+      if %w(assigned_to_id author_id user_id watcher_id updated_by last_updated_by).include?(field)
         if v.delete("me")
           if User.current.logged?
             v.push(User.current.id.to_s)
diff --git a/config/locales/en.yml b/config/locales/en.yml
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -365,6 +365,8 @@ en:
   field_default_version: Default version
   field_remote_ip: IP address
   field_textarea_font: Font used for text areas
+  field_updated_by: Updated by
+  field_last_updated_by: Last updated by
 
   setting_app_title: Application title
   setting_app_subtitle: Application subtitle
diff --git a/test/fixtures/issues.yml b/test/fixtures/issues.yml
--- a/test/fixtures/issues.yml
+++ b/test/fixtures/issues.yml
@@ -2,7 +2,7 @@
 issues_001:
   created_on: <%= 3.days.ago.to_s(:db) %>
   project_id: 1
-  updated_on: <%= 1.day.ago.to_s(:db) %>
+  updated_on: <%= 1.days.ago.to_date.to_s(:db) %>
   priority_id: 4
   subject: Cannot print recipes
   id: 1
@@ -96,7 +96,7 @@ issues_005:
 issues_006:
   created_on: <%= 1.minute.ago.to_s(:db) %>
   project_id: 5
-  updated_on: <%= 1.minute.ago.to_s(:db) %>
+  updated_on: <%= 1.days.ago.to_date.to_s(:db) %>
   priority_id: 4
   subject: Issue of a private subproject
   id: 6
@@ -252,7 +252,7 @@ issues_014:
   id: 14
   created_on: <%= 15.days.ago.to_s(:db) %>
   project_id: 3
-  updated_on: <%= 15.days.ago.to_s(:db) %>
+  updated_on: <%= 15.days.ago.to_date.to_s(:db) %>
   priority_id: 5
   subject: Private issue on public project
   fixed_version_id:
diff --git a/test/fixtures/journals.yml b/test/fixtures/journals.yml
--- a/test/fixtures/journals.yml
+++ b/test/fixtures/journals.yml
@@ -14,7 +14,7 @@ journals_002:
   user_id: 2
   journalized_id: 1
 journals_003:
-  created_on: <%= 1.days.ago.to_date.to_s(:db) %>
+  created_on: 2006-07-19 21:09:50 +02:00
   notes: "A comment with inline image: !picture.jpg! and a reference to #1 and r2."
   id: 3
   journalized_type: Issue
@@ -29,8 +29,15 @@ journals_004:
   journalized_id: 6
 journals_005:
   id: 5
-  created_on: <%= 1.days.ago.to_date.to_s(:db) %>
+  created_on: <%= 15.days.ago.to_date.to_s(:db) %>
   notes: "A comment on a private issue."
   user_id: 2
   journalized_type: Issue
   journalized_id: 14
+journals_006:
+  id: 6
+  created_on: 2006-07-19 21:07:27 +02:00
+  notes: "New updates"
+  user_id: 3
+  journalized_type: Issue
+  journalized_id: 3
diff --git a/test/unit/issue_test.rb b/test/unit/issue_test.rb
--- a/test/unit/issue_test.rb
+++ b/test/unit/issue_test.rb
@@ -2702,7 +2702,7 @@ class IssueTest < ActiveSupport::TestCas
   end
 
   def test_last_journal_id_without_journals_should_return_nil
-    assert_nil Issue.find(3).last_journal_id
+    assert_nil Issue.find(4).last_journal_id
   end
 
   def test_journals_after_should_return_journals_with_greater_id
diff --git a/test/unit/query_test.rb b/test/unit/query_test.rb
--- a/test/unit/query_test.rb
+++ b/test/unit/query_test.rb
@@ -29,7 +29,7 @@ class QueryTest < ActiveSupport::TestCas
            :queries,
            :projects_trackers,
            :custom_fields_trackers,
-           :workflows
+           :workflows, :journals
 
   def setup
     User.current = nil
@@ -691,6 +691,40 @@ class QueryTest < ActiveSupport::TestCas
     assert !result.include?(i3)
   end
 
+  def test_filter_updated_by
+    query = IssueQuery.new(:name => '_')
+    filter_name = "updated_by"
+    assert_include filter_name, query.available_filters.keys
+
+    query.filters = {filter_name => {:operator => '=', :values => [2]}}
+    assert_equal [1,2,14], find_issues_with_query(query).map(&:id).uniq.sort
+
+    query.filters = {filter_name => {:operator => '=', :values => [4]}}
+    assert_equal [], find_issues_with_query(query).map(&:id).uniq.sort
+
+    query.filters = {filter_name => {:operator => '!', :values => [3]}, 'project_id' => {:operator => '=', :values =>[3]}}
+    assert_equal [14], find_issues_with_query(query).map(&:id).uniq.sort
+  end
+
+  def test_filter_updated_by_me
+    User.current = User.find(1)
+
+    query = IssueQuery.new(:name => '_', :filters => { "updated_by" => {:operator => '=', :values => ['me']}})
+    assert_equal [1,6], find_issues_with_query(query).map(&:id).uniq.sort
+  end
+
+  def test_filter_last_updated_by
+    query = IssueQuery.new(:name => '_')
+    filter_name = "last_updated_by"
+    assert_include filter_name, query.available_filters.keys
+
+    query.filters = {filter_name => {:operator => '=', :values => [2]}}
+    assert_equal [1,2,14], find_issues_with_query(query).map(&:id).uniq.sort
+
+    query.filters = {filter_name => {:operator => '!', :values => [1,2]}}
+    assert_equal [3], find_issues_with_query(query).map(&:id).uniq.sort
+  end
+
   def test_user_custom_field_filtered_on_me
     User.current = User.find(2)
     cf = IssueCustomField.create!(:field_format => 'user', :is_for_all => true, :is_filter => true, :name => 'User custom field', :tracker_ids => [1])