diff --git a/app/assets/stylesheets/specific/posts.css.scss b/app/assets/stylesheets/specific/posts.css.scss
index eddf92f4c..025adb0a3 100644
--- a/app/assets/stylesheets/specific/posts.css.scss
+++ b/app/assets/stylesheets/specific/posts.css.scss
@@ -478,6 +478,10 @@ div#c-post-versions, div#c-artist-versions {
       word-wrap: break-word
     }
 
+    tr.hilite {
+      background: $highlight_color;
+    }
+
     ins, ins a {
       color: green;
       text-decoration: none;
diff --git a/app/controllers/reports_controller.rb b/app/controllers/reports_controller.rb
index b93c13161..0e28bea8e 100644
--- a/app/controllers/reports_controller.rb
+++ b/app/controllers/reports_controller.rb
@@ -1,6 +1,7 @@
 class ReportsController < ApplicationController
   before_filter :member_only
   before_filter :gold_only, :only => [:similar_users]
+  before_filter :janitor_only, :only => [:post_versions, :post_versions_create]
 
   def user_promotions
     @report = Reports::UserPromotions.new
@@ -22,4 +23,18 @@ class ReportsController < ApplicationController
     @report = Reports::UserSimilarity.new(CurrentUser.id)
     @presenter = UserSimilarityPresenter.new(@report)
   end
+
+  def post_versions
+  end
+
+  def post_versions_create
+    if params[:type] == "added"
+      @report = Reports::PostVersionsAdded.new(params[:tag])
+    else
+      @report = Reports::PostVersionRemoved.new(params[:tag])
+    end
+    @report.process!
+    flash[:notice] = "Report is being generated and will be emailed to you shortly"
+    redirect_to reports_post_versions_path
+  end
 end
diff --git a/app/logical/reports/post_versions_added.rb b/app/logical/reports/post_versions_added.rb
new file mode 100644
index 000000000..617aedca5
--- /dev/null
+++ b/app/logical/reports/post_versions_added.rb
@@ -0,0 +1,17 @@
+module Reports
+  class PostVersionsAdded
+    attr_reader :tag, :email
+
+    def initialize(tag, email)
+      @tag = tag
+      @email = email
+    end
+
+    def process!
+      if tag
+        json = {"type" => "post_versions_added", "tag" => tag, "email" => email}.to_json
+        SqsService.new(Danbooru.config.aws_sqs_post_versions_url).send_message(json)
+      end
+    end
+  end
+end
diff --git a/app/logical/reports/post_versions_removed.rb b/app/logical/reports/post_versions_removed.rb
new file mode 100644
index 000000000..fcf4bd35a
--- /dev/null
+++ b/app/logical/reports/post_versions_removed.rb
@@ -0,0 +1,17 @@
+module Reports
+  class PostVersionsRemoved
+    attr_reader :tag, :email
+
+    def initialize(tag, email)
+      @tag = tag
+      @email = email
+    end
+
+    def process!
+      if tag
+        json = {"type" => "post_versions_removed", "tag" => tag, "email" => email}.to_json
+        SqsService.new(Danbooru.config.aws_sqs_post_versions_url).send_message(json)
+      end
+    end
+  end
+end
diff --git a/app/views/post_versions/_listing.html.erb b/app/views/post_versions/_listing.html.erb
index 9de79017f..c015da48d 100644
--- a/app/views/post_versions/_listing.html.erb
+++ b/app/views/post_versions/_listing.html.erb
@@ -18,7 +18,7 @@
     </thead>
     <tbody>
       <% post_versions.each do |post_version| %>
-        <tr id="post-version-<%= post_version.id %>">
+        <tr id="post-version-<%= post_version.id %>" <% if params[:hilite].to_i == post_version.id %>class="hilite"<% end %>>
           <td><%= link_to("#{post_version.post_id}.#{post_version.id}", post_path(post_version.post_id)) %></td>
           <td><%= compact_time(post_version.updated_at) %></td>
           <td>
diff --git a/app/views/reports/post_versions.html.erb b/app/views/reports/post_versions.html.erb
new file mode 100644
index 000000000..35922be3d
--- /dev/null
+++ b/app/views/reports/post_versions.html.erb
@@ -0,0 +1,27 @@
+<div id="c-reports">
+  <div id="a-post-versions">
+    <h1>Post Changes Report</h1>
+
+    <p>You can search all post changes to find when and where a tag was added or removed. Because these queries can take a long time to generate the results will be emailed to you. Only the 1,000 most recent changes will be returned.</p>
+
+    <%= form_tag(reports_post_versions_create_path, :method => :post, :class => "simple_form") do %>
+      <div class="input">
+        <label for="tag">Tag</label>
+        <%= text_field_tag "tag" %>
+        <%= select_tag "type", options_for_select(%w(added removed)) %>
+      </div>
+
+      <div class="input">
+        <label for="Email">Email</label>
+        <%= text_field_tag "email", CurrentUser.user.email %>
+      </div>
+
+      <%= submit_tag "Submit" %>
+    <% end %>
+
+  </div>
+</div>
+
+<% content_for(:page_title) do %>
+  Post Changes Report - <%= Danbooru.config.app_name %>
+<% end %>
diff --git a/app/views/static/site_map.html.erb b/app/views/static/site_map.html.erb
index ac3875f5a..7e3d527c6 100644
--- a/app/views/static/site_map.html.erb
+++ b/app/views/static/site_map.html.erb
@@ -64,6 +64,7 @@
         <% if Danbooru.config.report_server %>
           <li><%= link_to("Top Searches", searches_explore_posts_path) %></li>
           <li><%= link_to("Missed Searches", missed_searches_explore_posts_path) %></li>
+          <li><%= link_to("Post Changes", reports_post_versions_path) %></li>
         <% end %>
       </ul>
     </section>
diff --git a/config/danbooru_default_config.rb b/config/danbooru_default_config.rb
index 1860c327b..a0acfab25 100644
--- a/config/danbooru_default_config.rb
+++ b/config/danbooru_default_config.rb
@@ -453,6 +453,9 @@ module Danbooru
     def aws_sqs_reltagcalc_url
     end
 
+    def aws_sqs_post_versions_url
+    end
+
     def aws_sqs_region
     end
   end
diff --git a/config/routes.rb b/config/routes.rb
index 34690630f..efa0fea34 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -225,6 +225,8 @@ Rails.application.routes.draw do
   get "reports/contributors" => "reports#contributors"
   get "reports/uploads" => "reports#uploads"
   get "reports/similar_users" => "reports#similar_users"
+  get "reports/post_versions" => "reports#post_versions"
+  post "reports/post_versions_create" => "reports#post_versions_create"
   resources :saved_searches, :except => [:show] do
     collection do
       get :categories