diff --git a/Gemfile.lock b/Gemfile.lock
index aa9f59da8a..cc7751ae19 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/rails/rails.git
-  revision: ecb394a31420f6fd1d0ab692c79f2dd44176e2c9
+  revision: c7a716aa5a692cae301d56b345faa5d79cbfc320
   branch: 5-0-stable
   specs:
     actioncable (5.0.0.1)
@@ -110,7 +110,7 @@ GEM
     coffee-script-source (1.10.0)
     colorize (0.8.1)
     concurrent-ruby (1.0.2)
-    connection_pool (2.2.0)
+    connection_pool (2.2.1)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     debug_inspector (0.0.2)
@@ -287,7 +287,7 @@ GEM
       execjs
       railties (>= 3.2)
       tilt
-    redis (3.3.1)
+    redis (3.3.2)
     redis-actionpack (5.0.0)
       actionpack (>= 4.0.0, < 6)
       redis-rack (~> 2.0.0.pre)
@@ -348,10 +348,10 @@ GEM
     sdoc (0.4.1)
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
-    sidekiq (4.2.1)
+    sidekiq (4.2.7)
       concurrent-ruby (~> 1.0)
       connection_pool (~> 2.2, >= 2.2.0)
-      rack-protection (~> 1.5)
+      rack-protection (>= 1.5.0)
       redis (~> 3.2, >= 3.2.1)
     simple_form (3.2.1)
       actionpack (> 4, < 5.1)
@@ -374,7 +374,7 @@ GEM
       tins (~> 1.0)
     terminal-table (1.7.0)
       unicode-display_width (~> 1.1)
-    thor (0.19.1)
+    thor (0.19.4)
     thread (0.2.2)
     thread_safe (0.3.5)
     tilt (2.0.5)
diff --git a/app/assets/javascripts/components/actions/compose.jsx b/app/assets/javascripts/components/actions/compose.jsx
index b97cb7b125..c2a7909f6c 100644
--- a/app/assets/javascripts/components/actions/compose.jsx
+++ b/app/assets/javascripts/components/actions/compose.jsx
@@ -23,6 +23,7 @@ export const COMPOSE_MOUNT   = 'COMPOSE_MOUNT';
 export const COMPOSE_UNMOUNT = 'COMPOSE_UNMOUNT';
 
 export const COMPOSE_SENSITIVITY_CHANGE = 'COMPOSE_SENSITIVITY_CHANGE';
+export const COMPOSE_VISIBILITY_CHANGE  = 'COMPOSE_VISIBILITY_CHANGE';
 
 export function changeCompose(text) {
   return {
@@ -65,7 +66,8 @@ export function submitCompose() {
       status: getState().getIn(['compose', 'text'], ''),
       in_reply_to_id: getState().getIn(['compose', 'in_reply_to'], null),
       media_ids: getState().getIn(['compose', 'media_attachments']).map(item => item.get('id')),
-      sensitive: getState().getIn(['compose', 'sensitive'])
+      sensitive: getState().getIn(['compose', 'sensitive']),
+      unlisted: getState().getIn(['compose', 'unlisted'])
     }).then(function (response) {
       dispatch(submitComposeSuccess(response.data));
       dispatch(updateTimeline('home', response.data));
@@ -207,3 +209,10 @@ export function changeComposeSensitivity(checked) {
     checked
   };
 };
+
+export function changeComposeVisibility(checked) {
+  return {
+    type: COMPOSE_VISIBILITY_CHANGE,
+    checked
+  };
+};
diff --git a/app/assets/javascripts/components/features/compose/components/compose_form.jsx b/app/assets/javascripts/components/features/compose/components/compose_form.jsx
index b16731c054..4688f39d36 100644
--- a/app/assets/javascripts/components/features/compose/components/compose_form.jsx
+++ b/app/assets/javascripts/components/features/compose/components/compose_form.jsx
@@ -70,6 +70,7 @@ const ComposeForm = React.createClass({
     suggestion_token: React.PropTypes.string,
     suggestions: React.PropTypes.array,
     sensitive: React.PropTypes.bool,
+    unlisted: React.PropTypes.bool,
     is_submitting: React.PropTypes.bool,
     is_uploading: React.PropTypes.bool,
     in_reply_to: ImmutablePropTypes.map,
@@ -79,7 +80,8 @@ const ComposeForm = React.createClass({
     onClearSuggestions: React.PropTypes.func.isRequired,
     onFetchSuggestions: React.PropTypes.func.isRequired,
     onSuggestionSelected: React.PropTypes.func.isRequired,
-    onChangeSensitivity: React.PropTypes.func.isRequired
+    onChangeSensitivity: React.PropTypes.func.isRequired,
+    onChangeVisibility: React.PropTypes.func.isRequired
   },
 
   mixins: [PureRenderMixin],
@@ -147,6 +149,10 @@ const ComposeForm = React.createClass({
     this.props.onChangeSensitivity(e.target.checked);
   },
 
+  handleChangeVisibility (e) {
+    this.props.onChangeVisibility(e.target.checked);
+  },
+
   render () {
     const { intl } = this.props;
     let replyArea  = '';
@@ -187,7 +193,12 @@ const ComposeForm = React.createClass({
           <UploadButtonContainer style={{ paddingTop: '4px' }} />
         </div>
 
-        <label style={{ display: 'block', lineHeight: '24px', verticalAlign: 'middle', marginTop: '10px', borderTop: '1px solid #616b86', paddingTop: '10px' }}>
+        <label style={{ display: 'block', lineHeight: '24px', verticalAlign: 'middle', marginTop: '10px', borderTop: '1px solid #282c37', paddingTop: '10px' }}>
+          <Toggle checked={this.props.unlisted} onChange={this.handleChangeVisibility} />
+          <span style={{ display: 'inline-block', verticalAlign: 'middle', marginBottom: '14px', marginLeft: '8px', color: '#9baec8' }}><FormattedMessage id='compose_form.unlisted' defaultMessage='Unlisted mode' /></span>
+        </label>
+
+        <label style={{ display: 'block', lineHeight: '24px', verticalAlign: 'middle' }}>
           <Toggle checked={this.props.sensitive} onChange={this.handleChangeSensitivity} />
           <span style={{ display: 'inline-block', verticalAlign: 'middle', marginBottom: '14px', marginLeft: '8px', color: '#9baec8' }}><FormattedMessage id='compose_form.sensitive' defaultMessage='Mark content as sensitive' /></span>
         </label>
diff --git a/app/assets/javascripts/components/features/compose/containers/compose_form_container.jsx b/app/assets/javascripts/components/features/compose/containers/compose_form_container.jsx
index 9897f65050..8aa7194761 100644
--- a/app/assets/javascripts/components/features/compose/containers/compose_form_container.jsx
+++ b/app/assets/javascripts/components/features/compose/containers/compose_form_container.jsx
@@ -7,7 +7,8 @@ import {
   clearComposeSuggestions,
   fetchComposeSuggestions,
   selectComposeSuggestion,
-  changeComposeSensitivity
+  changeComposeSensitivity,
+  changeComposeVisibility
 } from '../../../actions/compose';
 import { makeGetStatus } from '../../../selectors';
 
@@ -20,6 +21,7 @@ const makeMapStateToProps = () => {
       suggestion_token: state.getIn(['compose', 'suggestion_token']),
       suggestions: state.getIn(['compose', 'suggestions']).toJS(),
       sensitive: state.getIn(['compose', 'sensitive']),
+      unlisted: state.getIn(['compose', 'unlisted']),
       is_submitting: state.getIn(['compose', 'is_submitting']),
       is_uploading: state.getIn(['compose', 'is_uploading']),
       in_reply_to: getStatus(state, state.getIn(['compose', 'in_reply_to']))
@@ -57,6 +59,10 @@ const mapDispatchToProps = function (dispatch) {
 
     onChangeSensitivity (checked) {
       dispatch(changeComposeSensitivity(checked));
+    },
+
+    onChangeVisibility (checked) {
+      dispatch(changeComposeVisibility(checked));
     }
   }
 };
diff --git a/app/assets/javascripts/components/locales/de.jsx b/app/assets/javascripts/components/locales/de.jsx
index 4e2a70edbb..17b74e15d6 100644
--- a/app/assets/javascripts/components/locales/de.jsx
+++ b/app/assets/javascripts/components/locales/de.jsx
@@ -34,6 +34,8 @@ const en = {
   "tabs_bar.notifications": "Mitteilungen",
   "compose_form.placeholder": "Worüber möchstest du schreiben?",
   "compose_form.publish": "Veröffentlichen",
+  "compose_form.sensitive": "Medien als sensitiv markieren",
+  "compose_form.unlisted": "Öffentlich nicht auflisten",
   "navigation_bar.settings": "Einstellungen",
   "navigation_bar.public_timeline": "Öffentlich",
   "navigation_bar.logout": "Abmelden",
diff --git a/app/assets/javascripts/components/locales/en.jsx b/app/assets/javascripts/components/locales/en.jsx
index 41a44e3dcb..b17e623cbe 100644
--- a/app/assets/javascripts/components/locales/en.jsx
+++ b/app/assets/javascripts/components/locales/en.jsx
@@ -38,6 +38,7 @@ const en = {
   "compose_form.placeholder": "What is on your mind?",
   "compose_form.publish": "Toot",
   "compose_form.sensitive": "Mark content as sensitive",
+  "compose_form.unlisted": "Unlisted mode",
   "navigation_bar.settings": "Settings",
   "navigation_bar.public_timeline": "Public timeline",
   "navigation_bar.logout": "Logout",
diff --git a/app/assets/javascripts/components/locales/es.jsx b/app/assets/javascripts/components/locales/es.jsx
index d4434bba7e..d6e61fd9e9 100644
--- a/app/assets/javascripts/components/locales/es.jsx
+++ b/app/assets/javascripts/components/locales/es.jsx
@@ -35,6 +35,8 @@ const es = {
   "tabs_bar.notifications": "Notificaciones",
   "compose_form.placeholder": "¿En qué estás pensando?",
   "compose_form.publish": "Publicar",
+  "compose_form.sensitive": null,
+  "compose_form.unlisted": "No listado",
   "navigation_bar.settings": "Ajustes",
   "navigation_bar.public_timeline": "Público",
   "navigation_bar.logout": "Cerrar sesión",
diff --git a/app/assets/javascripts/components/locales/fr.jsx b/app/assets/javascripts/components/locales/fr.jsx
index c4458a1456..968c3f8c39 100644
--- a/app/assets/javascripts/components/locales/fr.jsx
+++ b/app/assets/javascripts/components/locales/fr.jsx
@@ -36,7 +36,8 @@ const fr = {
   "tabs_bar.notifications": "Notifications",
   "compose_form.placeholder": "Qu’avez-vous en tête ?",
   "compose_form.publish": "Pouet",
-  "compose_form.sensitive": "Marquer le contenu comme délicat", 
+  "compose_form.sensitive": "Marquer le contenu comme délicat",
+  "compose_form.unlisted": "Ne pas apparaître dans le fil public",
   "navigation_bar.settings": "Paramètres",
   "navigation_bar.public_timeline": "Public",
   "navigation_bar.logout": "Déconnexion",
diff --git a/app/assets/javascripts/components/locales/hu.jsx b/app/assets/javascripts/components/locales/hu.jsx
index 4a446965c6..606fc830fe 100644
--- a/app/assets/javascripts/components/locales/hu.jsx
+++ b/app/assets/javascripts/components/locales/hu.jsx
@@ -37,6 +37,7 @@ const hu = {
   "compose_form.placeholder": "Mire gondolsz?",
   "compose_form.publish": "Tülk!",
   "compose_form.sensitive": "Tartalom érzékenynek jelölése",
+  "compose_form.unlisted": "Listázatlan mód",
   "navigation_bar.settings": "Beállítások",
   "navigation_bar.public_timeline": "Nyilvános időfolyam",
   "navigation_bar.logout": "Kijelentkezés",
diff --git a/app/assets/javascripts/components/locales/pt.jsx b/app/assets/javascripts/components/locales/pt.jsx
index e67bd80acb..0fba15f2c7 100644
--- a/app/assets/javascripts/components/locales/pt.jsx
+++ b/app/assets/javascripts/components/locales/pt.jsx
@@ -33,6 +33,8 @@ const pt = {
   "tabs_bar.public": "Público",
   "compose_form.placeholder": "Que estás pensando?",
   "compose_form.publish": "Publicar",
+  "compose_form.sensitive": null,
+  "compose_form.unlisted": null,
   "navigation_bar.settings": "Configurações",
   "navigation_bar.public_timeline": "Timeline Pública",
   "navigation_bar.logout": "Logout",
diff --git a/app/assets/javascripts/components/reducers/compose.jsx b/app/assets/javascripts/components/reducers/compose.jsx
index 4abc3e6aa0..9d1d53083c 100644
--- a/app/assets/javascripts/components/reducers/compose.jsx
+++ b/app/assets/javascripts/components/reducers/compose.jsx
@@ -16,7 +16,8 @@ import {
   COMPOSE_SUGGESTIONS_CLEAR,
   COMPOSE_SUGGESTIONS_READY,
   COMPOSE_SUGGESTION_SELECT,
-  COMPOSE_SENSITIVITY_CHANGE
+  COMPOSE_SENSITIVITY_CHANGE,
+  COMPOSE_VISIBILITY_CHANGE
 } from '../actions/compose';
 import { TIMELINE_DELETE } from '../actions/timelines';
 import { ACCOUNT_SET_SELF } from '../actions/accounts';
@@ -25,6 +26,7 @@ import Immutable from 'immutable';
 const initialState = Immutable.Map({
   mounted: false,
   sensitive: false,
+  unlisted: false,
   text: '',
   in_reply_to: null,
   is_submitting: false,
@@ -91,6 +93,8 @@ export default function compose(state = initialState, action) {
       return state.set('mounted', false);
     case COMPOSE_SENSITIVITY_CHANGE:
       return state.set('sensitive', action.checked);
+    case COMPOSE_VISIBILITY_CHANGE:
+      return state.set('unlisted', action.checked);
     case COMPOSE_CHANGE:
       return state.set('text', action.text);
     case COMPOSE_REPLY:
diff --git a/app/controllers/api/v1/statuses_controller.rb b/app/controllers/api/v1/statuses_controller.rb
index a0b15cfbc9..8b7690850f 100644
--- a/app/controllers/api/v1/statuses_controller.rb
+++ b/app/controllers/api/v1/statuses_controller.rb
@@ -52,7 +52,7 @@ class Api::V1::StatusesController < ApiController
   end
 
   def create
-    @status = PostStatusService.new.call(current_user.account, params[:status], params[:in_reply_to_id].blank? ? nil : Status.find(params[:in_reply_to_id]), media_ids: params[:media_ids], sensitive: params[:sensitive])
+    @status = PostStatusService.new.call(current_user.account, params[:status], params[:in_reply_to_id].blank? ? nil : Status.find(params[:in_reply_to_id]), media_ids: params[:media_ids], sensitive: params[:sensitive], unlisted: params[:unlisted])
     render action: :show
   end
 
@@ -73,7 +73,7 @@ class Api::V1::StatusesController < ApiController
     @reblogged_map = { @status.id => false }
 
     RemovalWorker.perform_async(reblog.id)
-    
+
     render action: :show
   end
 
diff --git a/app/models/concerns/obfuscate_filename.rb b/app/controllers/concerns/obfuscate_filename.rb
similarity index 75%
rename from app/models/concerns/obfuscate_filename.rb
rename to app/controllers/concerns/obfuscate_filename.rb
index dc25cdbc2e..9f12cb7e97 100644
--- a/app/models/concerns/obfuscate_filename.rb
+++ b/app/controllers/concerns/obfuscate_filename.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 module ObfuscateFilename
   extend ActiveSupport::Concern
 
@@ -11,6 +12,6 @@ module ObfuscateFilename
     file = params.dig(*path)
     return if file.nil?
 
-    file.original_filename = "media" + File.extname(file.original_filename)
+    file.original_filename = 'media' + File.extname(file.original_filename)
   end
 end
diff --git a/app/controllers/settings/profiles_controller.rb b/app/controllers/settings/profiles_controller.rb
index 21fbba2afd..0276f5fed4 100644
--- a/app/controllers/settings/profiles_controller.rb
+++ b/app/controllers/settings/profiles_controller.rb
@@ -24,7 +24,7 @@ class Settings::ProfilesController < ApplicationController
   private
 
   def account_params
-    params.require(:account).permit(:display_name, :note, :avatar, :header, :silenced)
+    params.require(:account).permit(:display_name, :note, :avatar, :header)
   end
 
   def set_account
diff --git a/app/helpers/atom_builder_helper.rb b/app/helpers/atom_builder_helper.rb
index 13faaa2612..40bbe0491c 100644
--- a/app/helpers/atom_builder_helper.rb
+++ b/app/helpers/atom_builder_helper.rb
@@ -38,7 +38,7 @@ module AtomBuilderHelper
   end
 
   def verb(xml, verb)
-    xml['activity'].send('verb', "http://activitystrea.ms/schema/1.0/#{verb}")
+    xml['activity'].send('verb', TagManager::VERBS[verb])
   end
 
   def content(xml, content)
@@ -62,7 +62,7 @@ module AtomBuilderHelper
   end
 
   def object_type(xml, type)
-    xml['activity'].send('object-type', "http://activitystrea.ms/schema/1.0/#{type}")
+    xml['activity'].send('object-type', TagManager::TYPES[type])
   end
 
   def uri(xml, uri)
@@ -108,7 +108,7 @@ module AtomBuilderHelper
   end
 
   def link_mention(xml, account)
-    xml.link(rel: 'mentioned', href: TagManager.instance.uri_for(account))
+    xml.link(:rel => 'mentioned', :href => TagManager.instance.uri_for(account), 'ostatus:object-type' => TagManager::TYPES[:person])
   end
 
   def link_enclosure(xml, media)
@@ -139,6 +139,11 @@ module AtomBuilderHelper
     end
   end
 
+  def link_visibility(xml, item)
+    return unless item.respond_to?(:visibility) && item.public_visibility?
+    xml.link(:rel => 'mentioned', :href => TagManager::COLLECTIONS[:public], 'ostatus:object-type' => TagManager::TYPES[:collection])
+  end
+
   def include_author(xml, account)
     object_type      xml, :person
     uri              xml, TagManager.instance.uri_for(account)
@@ -189,6 +194,8 @@ module AtomBuilderHelper
             include_author xml, stream_entry.target.account
           end
 
+          link_visibility xml, stream_entry.target
+
           stream_entry.target.mentions.each do |mention|
             link_mention xml, mention.account
           end
@@ -204,25 +211,34 @@ module AtomBuilderHelper
       end
     end
 
+    link_visibility xml, stream_entry.activity
+
     stream_entry.mentions.each do |mentioned|
       link_mention xml, mentioned
     end
 
-    if stream_entry.activity.is_a?(Status)
-      stream_entry.activity.media_attachments.each do |media|
-        link_enclosure xml, media
-      end
+    return unless stream_entry.activity.is_a?(Status)
 
-      stream_entry.activity.tags.each do |tag|
-        category xml, tag
-      end
+    stream_entry.activity.media_attachments.each do |media|
+      link_enclosure xml, media
+    end
+
+    stream_entry.activity.tags.each do |tag|
+      category xml, tag
     end
   end
 
   private
 
   def root_tag(xml, tag, &block)
-    xml.send(tag, { :xmlns => 'http://www.w3.org/2005/Atom', 'xmlns:thr' => 'http://purl.org/syndication/thread/1.0', 'xmlns:activity' => 'http://activitystrea.ms/spec/1.0/', 'xmlns:poco' => 'http://portablecontacts.net/spec/1.0', 'xmlns:media' => 'http://purl.org/syndication/atommedia' }, &block)
+    xml.send(tag, {
+               'xmlns'          => TagManager::XMLNS,
+               'xmlns:thr'      => TagManager::THR_XMLNS,
+               'xmlns:activity' => TagManager::AS_XMLNS,
+               'xmlns:poco'     => TagManager::POCO_XMLNS,
+               'xmlns:media'    => TagManager::MEDIA_XMLNS,
+               'xmlns:ostatus'  => TagManager::OS_XMLNS,
+             }, &block)
   end
 
   def single_link_avatar(xml, account, size, px)
diff --git a/app/lib/tag_manager.rb b/app/lib/tag_manager.rb
index fcc4b32592..bd4cbbbb03 100644
--- a/app/lib/tag_manager.rb
+++ b/app/lib/tag_manager.rb
@@ -6,6 +6,37 @@ class TagManager
   include Singleton
   include RoutingHelper
 
+  VERBS = {
+    post:       'http://activitystrea.ms/schema/1.0/post',
+    share:      'http://activitystrea.ms/schema/1.0/share',
+    favorite:   'http://activitystrea.ms/schema/1.0/favorite',
+    unfavorite: 'http://activitystrea.ms/schema/1.0/unfavorite',
+    delete:     'delete',
+    follow:     'http://activitystrea.ms/schema/1.0/follow',
+    unfollow:   'http://ostatus.org/schema/1.0/unfollow',
+  }.freeze
+
+  TYPES = {
+    activity:   'http://activitystrea.ms/schema/1.0/activity',
+    note:       'http://activitystrea.ms/schema/1.0/note',
+    comment:    'http://activitystrea.ms/schema/1.0/comment',
+    person:     'http://activitystrea.ms/schema/1.0/person',
+    collection: 'http://activitystrea.ms/schema/1.0/collection',
+    group:      'http://activitystrea.ms/schema/1.0/group',
+  }.freeze
+
+  COLLECTIONS = {
+    public: 'http://activityschema.org/collection/public',
+  }.freeze
+
+  XMLNS       = 'http://www.w3.org/2005/Atom'
+  MEDIA_XMLNS = 'http://purl.org/syndication/atommedia'
+  AS_XMLNS    = 'http://activitystrea.ms/spec/1.0/'
+  THR_XMLNS   = 'http://purl.org/syndication/thread/1.0'
+  POCO_XMLNS  = 'http://portablecontacts.net/spec/1.0'
+  DFRN_XMLNS  = 'http://purl.org/macgirvin/dfrn/1.0'
+  OS_XMLNS    = 'http://ostatus.org/schema/1.0'
+
   def unique_tag(date, id, type)
     "tag:#{Rails.configuration.x.local_domain},#{date.strftime('%Y-%m-%d')}:objectId=#{id}:objectType=#{type}"
   end
diff --git a/app/models/status.rb b/app/models/status.rb
index 8f65a3ecc2..87d8249b19 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -5,6 +5,8 @@ class Status < ApplicationRecord
   include Streamable
   include Cacheable
 
+  enum visibility: [:public, :unlisted], _suffix: :visibility
+
   belongs_to :account, inverse_of: :statuses
 
   belongs_to :thread, foreign_key: 'in_reply_to_id', class_name: 'Status', inverse_of: :replies
@@ -100,6 +102,7 @@ class Status < ApplicationRecord
 
     def as_public_timeline(account = nil)
       query = joins('LEFT OUTER JOIN accounts ON statuses.account_id = accounts.id')
+              .where(visibility: :public)
               .where('accounts.silenced = FALSE')
               .where('statuses.in_reply_to_id IS NULL')
               .where('statuses.reblog_of_id IS NULL')
@@ -110,6 +113,7 @@ class Status < ApplicationRecord
     def as_tag_timeline(tag, account = nil)
       query = tag.statuses
                  .joins('LEFT OUTER JOIN accounts ON statuses.account_id = accounts.id')
+                 .where(visibility: :public)
                  .where('accounts.silenced = FALSE')
                  .where('statuses.in_reply_to_id IS NULL')
                  .where('statuses.reblog_of_id IS NULL')
diff --git a/app/services/fan_out_on_write_service.rb b/app/services/fan_out_on_write_service.rb
index 40d8a0feed..ea9588becd 100644
--- a/app/services/fan_out_on_write_service.rb
+++ b/app/services/fan_out_on_write_service.rb
@@ -8,7 +8,7 @@ class FanOutOnWriteService < BaseService
     deliver_to_followers(status)
     deliver_to_mentioned(status)
 
-    return if status.account.silenced?
+    return if status.account.silenced? || !status.public_visibility?
 
     deliver_to_hashtags(status)
     deliver_to_public(status)
diff --git a/app/services/post_status_service.rb b/app/services/post_status_service.rb
index 979a157e96..9e0ced129c 100644
--- a/app/services/post_status_service.rb
+++ b/app/services/post_status_service.rb
@@ -10,7 +10,7 @@ class PostStatusService < BaseService
   # @option [Enumerable] :media_ids Optional array of media IDs to attach
   # @return [Status]
   def call(account, text, in_reply_to = nil, options = {})
-    status = account.statuses.create!(text: text, thread: in_reply_to, sensitive: options[:sensitive])
+    status = account.statuses.create!(text: text, thread: in_reply_to, sensitive: options[:sensitive], visibility: options[:unlisted] ? :unlisted : :public)
     attach_media(status, options[:media_ids])
     process_mentions_service.call(status)
     process_hashtags_service.call(status)
diff --git a/app/services/process_feed_service.rb b/app/services/process_feed_service.rb
index a7a4cb2b0b..3aa0ceff8b 100644
--- a/app/services/process_feed_service.rb
+++ b/app/services/process_feed_service.rb
@@ -1,9 +1,6 @@
 # frozen_string_literal: true
 
 class ProcessFeedService < BaseService
-  ACTIVITY_NS = 'http://activitystrea.ms/spec/1.0/'
-  THREAD_NS   = 'http://purl.org/syndication/thread/1.0'
-
   def call(body, account)
     xml = Nokogiri::XML(body)
     xml.encoding = 'utf-8'
@@ -15,12 +12,12 @@ class ProcessFeedService < BaseService
   private
 
   def update_author(xml, account)
-    return if xml.at_xpath('/xmlns:feed').nil?
-    UpdateRemoteProfileService.new.call(xml.at_xpath('/xmlns:feed'), account, true)
+    return if xml.at_xpath('/xmlns:feed', xmlns: TagManager::XMLNS).nil?
+    UpdateRemoteProfileService.new.call(xml.at_xpath('/xmlns:feed', xmlns: TagManager::XMLNS), account, true)
   end
 
   def process_entries(xml, account)
-    xml.xpath('//xmlns:entry').reverse_each.map { |entry| ProcessEntry.new.call(entry, account) }.compact
+    xml.xpath('//xmlns:entry', xmlns: TagManager::XMLNS).reverse_each.map { |entry| ProcessEntry.new.call(entry, account) }.compact
   end
 
   class ProcessEntry
@@ -48,7 +45,7 @@ class ProcessFeedService < BaseService
       status = status_from_xml(@xml)
 
       if verb == :share
-        original_status = status_from_xml(@xml.at_xpath('.//activity:object', activity: ACTIVITY_NS))
+        original_status = status_from_xml(@xml.at_xpath('.//activity:object', activity: TagManager::AS_XMLNS))
         status.reblog   = original_status
 
         if original_status.nil?
@@ -138,9 +135,15 @@ class ProcessFeedService < BaseService
 
     def mentions_from_xml(parent, xml)
       processed_account_ids = []
+      public_visibility     = false
 
-      xml.xpath('./xmlns:link[@rel="mentioned"]').each do |link|
-        next if link['href'] == 'http://activityschema.org/collection/public'
+      xml.xpath('./xmlns:link[@rel="mentioned"]', xmlns: TagManager::XMLNS).each do |link|
+        if link['ostatus:object-type'] == TagManager::TYPES[:collection] && link['href'] == TagManager::COLLECTIONS[:public]
+          public_visibility = true
+          next
+        elsif link['ostatus:object-type'] == TagManager::TYPES[:group]
+          next
+        end
 
         url = Addressable::URI.parse(link['href'])
 
@@ -160,15 +163,18 @@ class ProcessFeedService < BaseService
         # So we can skip duplicate mentions
         processed_account_ids << mentioned_account.id
       end
+
+      parent.visibility = public_visibility ? :public : :unlisted
+      parent.save!
     end
 
     def hashtags_from_xml(parent, xml)
-      tags = xml.xpath('./xmlns:category').map { |category| category['term'] }.select { |t| !t.blank? }
+      tags = xml.xpath('./xmlns:category', xmlns: TagManager::XMLNS).map { |category| category['term'] }.select { |t| !t.blank? }
       ProcessHashtagsService.new.call(parent, tags)
     end
 
     def media_from_xml(parent, xml)
-      xml.xpath('./xmlns:link[@rel="enclosure"]').each do |link|
+      xml.xpath('./xmlns:link[@rel="enclosure"]', xmlns: TagManager::XMLNS).each do |link|
         next unless link['href']
 
         media = MediaAttachment.where(status: parent, remote_url: link['href']).first_or_initialize(account: parent.account, status: parent, remote_url: link['href'])
@@ -183,52 +189,52 @@ class ProcessFeedService < BaseService
     end
 
     def id(xml = @xml)
-      xml.at_xpath('./xmlns:id').content
+      xml.at_xpath('./xmlns:id', xmlns: TagManager::XMLNS).content
     end
 
     def verb(xml = @xml)
-      raw = xml.at_xpath('./activity:verb', activity: ACTIVITY_NS).content
-      raw.gsub('http://activitystrea.ms/schema/1.0/', '').gsub('http://ostatus.org/schema/1.0/', '').to_sym
+      raw = xml.at_xpath('./activity:verb', activity: TagManager::AS_XMLNS).content
+      TagManager::VERBS.key(raw)
     rescue
       :post
     end
 
     def type(xml = @xml)
-      raw = xml.at_xpath('./activity:object-type', activity: ACTIVITY_NS).content
-      raw.gsub('http://activitystrea.ms/schema/1.0/', '').gsub('http://ostatus.org/schema/1.0/', '').to_sym
+      raw = xml.at_xpath('./activity:object-type', activity: TagManager::AS_XMLNS).content
+      TagManager::TYPES.key(raw)
     rescue
       :activity
     end
 
     def url(xml = @xml)
-      link = xml.at_xpath('./xmlns:link[@rel="alternate"]')
+      link = xml.at_xpath('./xmlns:link[@rel="alternate"]', xmlns: TagManager::XMLNS)
       link.nil? ? nil : link['href']
     end
 
     def content(xml = @xml)
-      xml.at_xpath('./xmlns:content').content
+      xml.at_xpath('./xmlns:content', xmlns: TagManager::XMLNS).content
     end
 
     def published(xml = @xml)
-      xml.at_xpath('./xmlns:published').content
+      xml.at_xpath('./xmlns:published', xmlns: TagManager::XMLNS).content
     end
 
     def thread?(xml = @xml)
-      !xml.at_xpath('./thr:in-reply-to', thr: THREAD_NS).nil?
+      !xml.at_xpath('./thr:in-reply-to', thr: TagManager::THR_XMLNS).nil?
     end
 
     def thread(xml = @xml)
-      thr = xml.at_xpath('./thr:in-reply-to', thr: THREAD_NS)
+      thr = xml.at_xpath('./thr:in-reply-to', thr: TagManager::THR_XMLNS)
       [thr['ref'], thr['href']]
     end
 
     def account?(xml = @xml)
-      !xml.at_xpath('./xmlns:author').nil?
+      !xml.at_xpath('./xmlns:author', xmlns: TagManager::XMLNS).nil?
     end
 
     def acct(xml = @xml)
-      username = xml.at_xpath('./xmlns:author/xmlns:name').content
-      url      = xml.at_xpath('./xmlns:author/xmlns:uri').content
+      username = xml.at_xpath('./xmlns:author/xmlns:name', xmlns: TagManager::XMLNS).content
+      url      = xml.at_xpath('./xmlns:author/xmlns:uri', xmlns: TagManager::XMLNS).content
       domain   = Addressable::URI.parse(url).host
 
       "#{username}@#{domain}"
diff --git a/app/services/process_interaction_service.rb b/app/services/process_interaction_service.rb
index 6b2f6e2d28..129b2a2bea 100644
--- a/app/services/process_interaction_service.rb
+++ b/app/services/process_interaction_service.rb
@@ -1,8 +1,6 @@
 # frozen_string_literal: true
 
 class ProcessInteractionService < BaseService
-  ACTIVITY_NS = 'http://activitystrea.ms/spec/1.0/'
-
   # Record locally the remote interaction with our user
   # @param [String] envelope Salmon envelope
   # @param [Account] target_account Account the Salmon was addressed to
@@ -14,8 +12,8 @@ class ProcessInteractionService < BaseService
 
     return unless contains_author?(xml)
 
-    username = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name').content
-    url      = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri').content
+    username = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name', xmlns: TagManager::XMLNS).content
+    url      = xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri', xmlns: TagManager::XMLNS).content
     domain   = Addressable::URI.parse(url).host
     account  = Account.find_by(username: username, domain: domain)
 
@@ -26,7 +24,7 @@ class ProcessInteractionService < BaseService
     end
 
     if salmon.verify(envelope, account.keypair)
-      update_remote_profile_service.call(xml.at_xpath('/xmlns:entry'), account, true)
+      update_remote_profile_service.call(xml.at_xpath('/xmlns:entry', xmlns: TagManager::XMLNS), account, true)
 
       case verb(xml)
       when :follow
@@ -50,16 +48,17 @@ class ProcessInteractionService < BaseService
   private
 
   def contains_author?(xml)
-    !(xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name').nil? || xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri').nil?)
+    !(xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:name', xmlns: TagManager::XMLNS).nil? || xml.at_xpath('/xmlns:entry/xmlns:author/xmlns:uri', xmlns: TagManager::XMLNS).nil?)
   end
 
   def mentions_account?(xml, account)
-    xml.xpath('/xmlns:entry/xmlns:link[@rel="mentioned"]').each { |mention_link| return true if mention_link.attribute('href').value == TagManager.instance.url_for(account) }
+    xml.xpath('/xmlns:entry/xmlns:link[@rel="mentioned"]', xmlns: TagManager::XMLNS).each { |mention_link| return true if mention_link.attribute('href').value == TagManager.instance.url_for(account) }
     false
   end
 
   def verb(xml)
-    xml.at_xpath('//activity:verb', activity: ACTIVITY_NS).content.gsub('http://activitystrea.ms/schema/1.0/', '').gsub('http://ostatus.org/schema/1.0/', '').to_sym
+    raw = xml.at_xpath('//activity:verb', activity: TagManager::AS_XMLNS).content
+    TagManager::VERBS.key(raw)
   rescue
     :post
   end
@@ -74,7 +73,7 @@ class ProcessInteractionService < BaseService
   end
 
   def delete_post!(xml, account)
-    status = Status.find(xml.at_xpath('//xmlns:id').content)
+    status = Status.find(xml.at_xpath('//xmlns:id', xmlns: TagManager::XMLNS).content)
 
     return if status.nil?
 
@@ -96,7 +95,7 @@ class ProcessInteractionService < BaseService
   end
 
   def activity_id(xml)
-    xml.at_xpath('//activity:object', activity: ACTIVITY_NS).at_xpath('./xmlns:id').content
+    xml.at_xpath('//activity:object', activity: TagManager::AS_XMLNS).at_xpath('./xmlns:id', xmlns: TagManager::XMLNS).content
   end
 
   def salmon
diff --git a/app/services/update_remote_profile_service.rb b/app/services/update_remote_profile_service.rb
index 56b25816f2..66d25dfeb3 100644
--- a/app/services/update_remote_profile_service.rb
+++ b/app/services/update_remote_profile_service.rb
@@ -1,19 +1,16 @@
 # frozen_string_literal: true
 
 class UpdateRemoteProfileService < BaseService
-  POCO_NS = 'http://portablecontacts.net/spec/1.0'
-  DFRN_NS = 'http://purl.org/macgirvin/dfrn/1.0'
-
   def call(xml, account, resubscribe = false)
     return if xml.nil?
 
-    author_xml = xml.at_xpath('./xmlns:author') || xml.at_xpath('./dfrn:owner', dfrn: DFRN_NS)
-    hub_link   = xml.at_xpath('./xmlns:link[@rel="hub"]')
+    author_xml = xml.at_xpath('./xmlns:author', xmlns: TagManager::XMLNS) || xml.at_xpath('./dfrn:owner', dfrn: TagManager::DFRN_XMLNS)
+    hub_link   = xml.at_xpath('./xmlns:link[@rel="hub"]', xmlns: TagManager::XMLNS)
 
     unless author_xml.nil?
-      account.display_name      = author_xml.at_xpath('./poco:displayName', poco: POCO_NS).content unless author_xml.at_xpath('./poco:displayName', poco: POCO_NS).nil?
-      account.note              = author_xml.at_xpath('./poco:note', poco: POCO_NS).content unless author_xml.at_xpath('./poco:note').nil?
-      account.avatar_remote_url = author_xml.at_xpath('./xmlns:link[@rel="avatar"]')['href'] unless author_xml.at_xpath('./xmlns:link[@rel="avatar"]').nil? || author_xml.at_xpath('./xmlns:link[@rel="avatar"]')['href'].blank?
+      account.display_name      = author_xml.at_xpath('./poco:displayName', poco: TagManager::POCO_XMLNS).content unless author_xml.at_xpath('./poco:displayName', poco: TagManager::POCO_XMLNS).nil?
+      account.note              = author_xml.at_xpath('./poco:note', poco: TagManager::POCO_XMLNS).content unless author_xml.at_xpath('./poco:note', poco: TagManager::POCO_XMLNS).nil?
+      account.avatar_remote_url = author_xml.at_xpath('./xmlns:link[@rel="avatar"]', xmlns: TagManager::XMLNS)['href'] unless author_xml.at_xpath('./xmlns:link[@rel="avatar"]', xmlns: TagManager::XMLNS).nil? || author_xml.at_xpath('./xmlns:link[@rel="avatar"]', xmlns: TagManager::XMLNS)['href'].blank?
     end
 
     old_hub_url     = account.hub_url
diff --git a/app/views/settings/profiles/show.html.haml b/app/views/settings/profiles/show.html.haml
index e5f8a46c45..c2f1adb12e 100644
--- a/app/views/settings/profiles/show.html.haml
+++ b/app/views/settings/profiles/show.html.haml
@@ -8,7 +8,6 @@
   = f.input :note, placeholder: t('simple_form.labels.defaults.note')
   = f.input :avatar, wrapper: :with_label
   = f.input :header, wrapper: :with_label
-  = f.input :silenced, as: :boolean, wrapper: :with_label
 
   .actions
     = f.button :button, t('generic.save_changes'), type: :submit
diff --git a/config/locales/simple_form.de.yml b/config/locales/simple_form.de.yml
index 47e30ccb41..d0aed9d0ed 100644
--- a/config/locales/simple_form.de.yml
+++ b/config/locales/simple_form.de.yml
@@ -14,7 +14,6 @@ de:
         new_password: Neues Passwort
         note: Über mich
         password: Passwort
-        silenced: Öffentliche Beiträge nicht auflisten
         username: Nutzername
       interactions:
         must_be_follower: Benachrichtigungen von nicht-Folgern blockieren
diff --git a/config/locales/simple_form.en.yml b/config/locales/simple_form.en.yml
index 1e975af140..516d79b089 100644
--- a/config/locales/simple_form.en.yml
+++ b/config/locales/simple_form.en.yml
@@ -14,7 +14,6 @@ en:
         new_password: New password
         note: Bio
         password: Password
-        silenced: Unlisted mode
         username: Username
       interactions:
         must_be_follower: Block notifications from non-followers
diff --git a/config/locales/simple_form.es.yml b/config/locales/simple_form.es.yml
index bfe000b333..b6a8fe3d27 100644
--- a/config/locales/simple_form.es.yml
+++ b/config/locales/simple_form.es.yml
@@ -14,7 +14,6 @@ es:
         new_password: Nueva contraseña
         note: Biografía
         password: Contraseña
-        silenced: No listado
         username: Nombre de usuario
       notification_emails:
         favourite: Enviar correo electrónico cuando alguien de a favorito en su publicación
diff --git a/config/locales/simple_form.fr.yml b/config/locales/simple_form.fr.yml
index fd20056d73..0fcf89140d 100644
--- a/config/locales/simple_form.fr.yml
+++ b/config/locales/simple_form.fr.yml
@@ -14,7 +14,6 @@ fr:
         new_password: Nouveau mot de passe
         note: Présentation
         password: Mot de passe
-        silenced: Ne pas apparaître dans le fil public
         username: Identifiant
       interactions:
         must_be_follower: Masquer les notifications des personnes qui ne vous suivent pas
diff --git a/config/locales/simple_form.hu.yml b/config/locales/simple_form.hu.yml
index 39c4500876..89eb707673 100644
--- a/config/locales/simple_form.hu.yml
+++ b/config/locales/simple_form.hu.yml
@@ -14,7 +14,6 @@ hu:
         new_password: Új jelszó
         note: Önéletrajz
         password: Jelszó
-        silenced: Listázatlan mód
         username: Felhasználónév
       notification_emails:
         favourite: E-mail küldése amikor valaki kedvencnek jelöli az állapotod
diff --git a/db/migrate/20161130185319_add_visibility_to_statuses.rb b/db/migrate/20161130185319_add_visibility_to_statuses.rb
new file mode 100644
index 0000000000..3ad2abe011
--- /dev/null
+++ b/db/migrate/20161130185319_add_visibility_to_statuses.rb
@@ -0,0 +1,5 @@
+class AddVisibilityToStatuses < ActiveRecord::Migration[5.0]
+  def change
+    add_column :statuses, :visibility, :integer, null: false, default: 0
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 9ba638bfc2..7da83914c0 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20161130142058) do
+ActiveRecord::Schema.define(version: 20161130185319) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -176,6 +176,7 @@ ActiveRecord::Schema.define(version: 20161130142058) do
     t.integer  "reblog_of_id"
     t.string   "url"
     t.boolean  "sensitive",      default: false
+    t.integer  "visibility",     default: 0,     null: false
     t.index ["account_id"], name: "index_statuses_on_account_id", using: :btree
     t.index ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id", using: :btree
     t.index ["reblog_of_id"], name: "index_statuses_on_reblog_of_id", using: :btree
diff --git a/spec/helpers/atom_builder_helper_spec.rb b/spec/helpers/atom_builder_helper_spec.rb
index 7e11a8a772..8a161cab37 100644
--- a/spec/helpers/atom_builder_helper_spec.rb
+++ b/spec/helpers/atom_builder_helper_spec.rb
@@ -13,7 +13,7 @@ RSpec.describe AtomBuilderHelper, type: :helper do
 
   describe '#feed' do
     it 'creates a feed' do
-      expect(used_in_builder { |xml| helper.feed(xml) }).to match '<feed xmlns="http://www.w3.org/2005/Atom" xmlns:thr="http://purl.org/syndication/thread/1.0" xmlns:activity="http://activitystrea.ms/spec/1.0/" xmlns:poco="http://portablecontacts.net/spec/1.0" xmlns:media="http://purl.org/syndication/atommedia"/>'
+      expect(used_in_builder { |xml| helper.feed(xml) }).to match '<feed xmlns="http://www.w3.org/2005/Atom" xmlns:thr="http://purl.org/syndication/thread/1.0" xmlns:activity="http://activitystrea.ms/spec/1.0/" xmlns:poco="http://portablecontacts.net/spec/1.0" xmlns:media="http://purl.org/syndication/atommedia" xmlns:ostatus="http://ostatus.org/schema/1.0"/>'
     end
   end
 
@@ -46,7 +46,7 @@ RSpec.describe AtomBuilderHelper, type: :helper do
 
   describe '#verb' do
     it 'creates an entry' do
-      expect(used_with_namespaces { |xml| helper.verb(xml, 'verb') }).to match '<activity:verb>http://activitystrea.ms/schema/1.0/verb</activity:verb>'
+      expect(used_with_namespaces { |xml| helper.verb(xml, :post) }).to match '<activity:verb>http://activitystrea.ms/schema/1.0/post</activity:verb>'
     end
   end
 
@@ -76,7 +76,7 @@ RSpec.describe AtomBuilderHelper, type: :helper do
 
   describe '#object_type' do
     it 'creates an object type' do
-      expect(used_with_namespaces { |xml| helper.object_type(xml, 'test') }).to match '<activity:object-type>http://activitystrea.ms/schema/1.0/test</activity:object-type>'
+      expect(used_with_namespaces { |xml| helper.object_type(xml, :person) }).to match '<activity:object-type>http://activitystrea.ms/schema/1.0/person</activity:object-type>'
     end
   end
 
@@ -146,7 +146,7 @@ RSpec.describe AtomBuilderHelper, type: :helper do
     let(:account) { Fabricate(:account, username: 'alice') }
 
     it 'creates a link' do
-      expect(used_in_builder { |xml| helper.link_mention(xml, account) }).to match '<link rel="mentioned" href="https://cb6e6126.ngrok.io/users/alice"/>'
+      expect(used_in_builder { |xml| helper.link_mention(xml, account) }).to match '<link rel="mentioned" href="https://cb6e6126.ngrok.io/users/alice" ostatus:object-type="http://activitystrea.ms/schema/1.0/person"/>'
     end
   end