diff --git a/Gemfile b/Gemfile
index c1f5d1b999..57ecc2fb90 100644
--- a/Gemfile
+++ b/Gemfile
@@ -115,7 +115,7 @@ group :test do
   gem 'rspec-sidekiq', '~> 3.0'
   gem 'simplecov', '~> 0.16', require: false
   gem 'webmock', '~> 3.4'
-  gem 'parallel_tests', '~> 2.26'
+  gem 'parallel_tests', '~> 2.27'
 end
 
 group :development do
@@ -123,7 +123,7 @@ group :development do
   gem 'annotate', '~> 2.7'
   gem 'better_errors', '~> 2.5'
   gem 'binding_of_caller', '~> 0.7'
-  gem 'bullet', '~> 5.8'
+  gem 'bullet', '~> 5.9'
   gem 'letter_opener', '~> 1.4'
   gem 'letter_opener_web', '~> 1.3'
   gem 'memory_profiler'
diff --git a/Gemfile.lock b/Gemfile.lock
index 3737f2299a..642c3e1581 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -103,7 +103,7 @@ GEM
     brakeman (4.3.1)
     browser (2.5.3)
     builder (3.2.3)
-    bullet (5.8.1)
+    bullet (5.9.0)
       activesupport (>= 3.0.0)
       uniform_notifier (~> 1.11)
     bundler-audit (0.6.0)
@@ -361,7 +361,7 @@ GEM
       concurrent-ruby (~> 1.0.0)
       sidekiq (>= 3.5.0)
       statsd-ruby (~> 1.2.0)
-    oj (3.7.0)
+    oj (3.7.1)
     omniauth (1.8.1)
       hashie (>= 3.4.6, < 3.6.0)
       rack (>= 1.6.2, < 3)
@@ -388,7 +388,7 @@ GEM
       av (~> 0.9.0)
       paperclip (>= 2.5.2)
     parallel (1.12.1)
-    parallel_tests (2.26.2)
+    parallel_tests (2.27.0)
       parallel
     parser (2.5.3.0)
       ast (~> 2.4.0)
@@ -596,7 +596,7 @@ GEM
       unicode-display_width (~> 1.1, >= 1.1.1)
     terrapin (0.6.0)
       climate_control (>= 0.0.3, < 1.0)
-    thor (0.20.0)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
     timers (4.2.0)
@@ -660,7 +660,7 @@ DEPENDENCIES
   bootsnap (~> 1.3)
   brakeman (~> 4.3)
   browser
-  bullet (~> 5.8)
+  bullet (~> 5.9)
   bundler-audit (~> 0.6)
   capistrano (~> 3.11)
   capistrano-rails (~> 1.4)
@@ -718,7 +718,7 @@ DEPENDENCIES
   ox (~> 2.10)
   paperclip (~> 6.0)
   paperclip-av-transcoder (~> 0.6)
-  parallel_tests (~> 2.26)
+  parallel_tests (~> 2.27)
   pg (~> 1.1)
   pghero (~> 2.2)
   pkg-config (~> 1.3)
diff --git a/app/javascript/mastodon/components/scrollable_list.js b/app/javascript/mastodon/components/scrollable_list.js
index 7551d0b1fe..ab4e7d59cf 100644
--- a/app/javascript/mastodon/components/scrollable_list.js
+++ b/app/javascript/mastodon/components/scrollable_list.js
@@ -136,7 +136,7 @@ export default class ScrollableList extends PureComponent {
       React.Children.count(prevProps.children) < React.Children.count(this.props.children) &&
       this.getFirstChildKey(prevProps) !== this.getFirstChildKey(this.props);
 
-    if ((someItemInserted && this.node.scrollTop > 0) || this.mouseMovedRecently) {
+    if (someItemInserted && (this.node.scrollTop > 0 || this.mouseMovedRecently)) {
       return this.node.scrollHeight - this.node.scrollTop;
     } else {
       return null;
diff --git a/app/javascript/mastodon/features/status/components/card.js b/app/javascript/mastodon/features/status/components/card.js
index 743fe779a2..235d209b88 100644
--- a/app/javascript/mastodon/features/status/components/card.js
+++ b/app/javascript/mastodon/features/status/components/card.js
@@ -73,7 +73,7 @@ export default class Card extends React.PureComponent {
   };
 
   componentWillReceiveProps (nextProps) {
-    if (this.props.card !== nextProps.card) {
+    if (!Immutable.is(this.props.card, nextProps.card)) {
       this.setState({ embedded: false });
     }
   }
diff --git a/app/javascript/mastodon/locales/defaultMessages.json b/app/javascript/mastodon/locales/defaultMessages.json
index ec2d38a479..57988fbd83 100644
--- a/app/javascript/mastodon/locales/defaultMessages.json
+++ b/app/javascript/mastodon/locales/defaultMessages.json
@@ -349,6 +349,10 @@
       {
         "defaultMessage": "{name} boosted",
         "id": "status.reblogged_by"
+      },
+      {
+        "defaultMessage": "Show thread",
+        "id": "status.show_thread"
       }
     ],
     "path": "app/javascript/mastodon/components/status.json"
@@ -471,6 +475,15 @@
     ],
     "path": "app/javascript/mastodon/features/account_timeline/containers/header_container.json"
   },
+  {
+    "descriptors": [
+      {
+        "defaultMessage": "No toots here!",
+        "id": "empty_column.account_timeline"
+      }
+    ],
+    "path": "app/javascript/mastodon/features/account_timeline/index.json"
+  },
   {
     "descriptors": [
       {
@@ -578,6 +591,7 @@
         "id": "account.unendorse"
       },
       {
+        "defaultMessage": "Add or Remove from lists",
         "id": "account.add_or_remove_from_list"
       },
       {
@@ -1277,6 +1291,39 @@
   },
   {
     "descriptors": [
+      {
+        "defaultMessage": "Any of these",
+        "id": "hashtag.column_settings.tag_mode.any"
+      },
+      {
+        "defaultMessage": "All of these",
+        "id": "hashtag.column_settings.tag_mode.all"
+      },
+      {
+        "defaultMessage": "None of these",
+        "id": "hashtag.column_settings.tag_mode.none"
+      },
+      {
+        "defaultMessage": "Include additional tags in this column",
+        "id": "hashtag.column_settings.tag_toggle"
+      }
+    ],
+    "path": "app/javascript/mastodon/features/hashtag_timeline/components/column_settings.json"
+  },
+  {
+    "descriptors": [
+      {
+        "defaultMessage": "or {additional}",
+        "id": "hashtag.column_header.tag_mode.any"
+      },
+      {
+        "defaultMessage": "and {additional}",
+        "id": "hashtag.column_header.tag_mode.all"
+      },
+      {
+        "defaultMessage": "without {additional}",
+        "id": "hashtag.column_header.tag_mode.none"
+      },
       {
         "defaultMessage": "There is nothing in this hashtag yet.",
         "id": "empty_column.hashtag"
diff --git a/app/javascript/mastodon/locales/en.json b/app/javascript/mastodon/locales/en.json
index bd41b9714b..16f680fa3f 100644
--- a/app/javascript/mastodon/locales/en.json
+++ b/app/javascript/mastodon/locales/en.json
@@ -116,6 +116,7 @@
   "emoji_button.search_results": "Search results",
   "emoji_button.symbols": "Symbols",
   "emoji_button.travel": "Travel & Places",
+  "empty_column.account_timeline": "No toots here!",
   "empty_column.blocks": "You haven't blocked any users yet.",
   "empty_column.community": "The local timeline is empty. Write something publicly to get the ball rolling!",
   "empty_column.direct": "You don't have any direct messages yet. When you send or receive one, it will show up here.",
@@ -141,13 +142,13 @@
   "getting_started.open_source_notice": "Mastodon is open source software. You can contribute or report issues on GitHub at {github}.",
   "getting_started.security": "Security",
   "getting_started.terms": "Terms of service",
-  "hashtag.column_settings.tag_toggle": "Include additional tags for this column",
-  "hashtag.column_settings.tag_mode.any": "Any of these",
-  "hashtag.column_settings.tag_mode.all": "All of these",
-  "hashtag.column_settings.tag_mode.none": "None of these",
-  "hashtag.column_header.tag_mode.any": "{tag} or {additional}",
   "hashtag.column_header.tag_mode.all": "{tag} and {additional}",
+  "hashtag.column_header.tag_mode.any": "{tag} or {additional}",
   "hashtag.column_header.tag_mode.none": "{tag} without {additional}",
+  "hashtag.column_settings.tag_mode.all": "All of these",
+  "hashtag.column_settings.tag_mode.any": "Any of these",
+  "hashtag.column_settings.tag_mode.none": "None of these",
+  "hashtag.column_settings.tag_toggle": "Include additional tags for this column",
   "home.column_settings.basic": "Basic",
   "home.column_settings.show_reblogs": "Show boosts",
   "home.column_settings.show_replies": "Show replies",
@@ -325,6 +326,7 @@
   "status.show_less_all": "Show less for all",
   "status.show_more": "Show more",
   "status.show_more_all": "Show more for all",
+  "status.show_thread": "Show thread",
   "status.unmute_conversation": "Unmute conversation",
   "status.unpin": "Unpin from profile",
   "suggestions.dismiss": "Dismiss suggestion",
diff --git a/app/javascript/mastodon/locales/ja.json b/app/javascript/mastodon/locales/ja.json
index a964d6133c..a79f9db868 100644
--- a/app/javascript/mastodon/locales/ja.json
+++ b/app/javascript/mastodon/locales/ja.json
@@ -1,5 +1,5 @@
 {
-  "account.add_or_remove_from_list": "Add or Remove from lists",
+  "account.add_or_remove_from_list": "リストに追加または外す",
   "account.badges.bot": "Bot",
   "account.block": "@{name}さんをブロック",
   "account.block_domain": "{domain}全体を非表示",
@@ -116,6 +116,7 @@
   "emoji_button.search_results": "検索結果",
   "emoji_button.symbols": "記号",
   "emoji_button.travel": "旅行と場所",
+  "empty_column.account_timeline": "トゥートがありません！",
   "empty_column.blocks": "まだ誰もブロックしていません。",
   "empty_column.community": "ローカルタイムラインはまだ使われていません。何か書いてみましょう！",
   "empty_column.direct": "ダイレクトメッセージはまだありません。ダイレクトメッセージをやりとりすると、ここに表示されます。",
@@ -141,6 +142,13 @@
   "getting_started.open_source_notice": "Mastodonはオープンソースソフトウェアです。誰でもGitHub（{github}）から開発に参加したり、問題を報告したりできます。",
   "getting_started.security": "セキュリティ",
   "getting_started.terms": "プライバシーポリシー",
+  "hashtag.column_header.tag_mode.all": " と {additional}",
+  "hashtag.column_header.tag_mode.any": " か {additional}",
+  "hashtag.column_header.tag_mode.none": " ({additional} を除く)",
+  "hashtag.column_settings.tag_mode.all": "すべてを含む",
+  "hashtag.column_settings.tag_mode.any": "いずれかを含む",
+  "hashtag.column_settings.tag_mode.none": "これらを除く",
+  "hashtag.column_settings.tag_toggle": "このカラムに追加のタグを含める",
   "home.column_settings.basic": "基本設定",
   "home.column_settings.show_reblogs": "ブースト表示",
   "home.column_settings.show_replies": "返信表示",
@@ -318,10 +326,11 @@
   "status.show_less_all": "全て隠す",
   "status.show_more": "もっと見る",
   "status.show_more_all": "全て見る",
+  "status.show_thread": "続きを読む",
   "status.unmute_conversation": "会話のミュートを解除",
   "status.unpin": "プロフィールの固定表示を解除",
-  "suggestions.dismiss": "Dismiss suggestion",
-  "suggestions.header": "You might be interested in…",
+  "suggestions.dismiss": "隠す",
+  "suggestions.header": "興味あるかもしれません…",
   "tabs_bar.federated_timeline": "連合",
   "tabs_bar.home": "ホーム",
   "tabs_bar.local_timeline": "ローカル",
diff --git a/app/javascript/mastodon/reducers/statuses.js b/app/javascript/mastodon/reducers/statuses.js
index 6e3d830dac..885cc221cd 100644
--- a/app/javascript/mastodon/reducers/statuses.js
+++ b/app/javascript/mastodon/reducers/statuses.js
@@ -38,11 +38,11 @@ export default function statuses(state = initialState, action) {
   case FAVOURITE_REQUEST:
     return state.setIn([action.status.get('id'), 'favourited'], true);
   case FAVOURITE_FAIL:
-    return state.setIn([action.status.get('id'), 'favourited'], false);
+    return state.get(action.status.get('id')) === undefined ? state : state.setIn([action.status.get('id'), 'favourited'], false);
   case REBLOG_REQUEST:
     return state.setIn([action.status.get('id'), 'reblogged'], true);
   case REBLOG_FAIL:
-    return state.setIn([action.status.get('id'), 'reblogged'], false);
+    return state.get(action.status.get('id')) === undefined ? state : state.setIn([action.status.get('id'), 'reblogged'], false);
   case STATUS_MUTE_SUCCESS:
     return state.setIn([action.id, 'muted'], true);
   case STATUS_UNMUTE_SUCCESS:
diff --git a/app/lib/activitypub/activity/create.rb b/app/lib/activitypub/activity/create.rb
index 45079e2b3c..9d2ddd3f6e 100644
--- a/app/lib/activitypub/activity/create.rb
+++ b/app/lib/activitypub/activity/create.rb
@@ -177,7 +177,7 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
     updated   = tag['updated']
     emoji     = CustomEmoji.find_by(shortcode: shortcode, domain: @account.domain)
 
-    return unless emoji.nil? || image_url != emoji.image_remote_url || (updated && emoji.updated_at >= updated)
+    return unless emoji.nil? || image_url != emoji.image_remote_url || (updated && updated >= emoji.updated_at)
 
     emoji ||= CustomEmoji.new(domain: @account.domain, shortcode: shortcode, uri: uri)
     emoji.image_remote_url = image_url
diff --git a/app/services/activitypub/process_account_service.rb b/app/services/activitypub/process_account_service.rb
index c77858f1df..5c865dae2f 100644
--- a/app/services/activitypub/process_account_service.rb
+++ b/app/services/activitypub/process_account_service.rb
@@ -232,7 +232,7 @@ class ActivityPub::ProcessAccountService < BaseService
     updated   = tag['updated']
     emoji     = CustomEmoji.find_by(shortcode: shortcode, domain: @account.domain)
 
-    return unless emoji.nil? || image_url != emoji.image_remote_url || (updated && emoji.updated_at >= updated)
+    return unless emoji.nil? || image_url != emoji.image_remote_url || (updated && updated >= emoji.updated_at)
 
     emoji ||= CustomEmoji.new(domain: @account.domain, shortcode: shortcode, uri: uri)
     emoji.image_remote_url = image_url
diff --git a/app/services/fetch_link_card_service.rb b/app/services/fetch_link_card_service.rb
index 3e77579bba..38c578de29 100644
--- a/app/services/fetch_link_card_service.rb
+++ b/app/services/fetch_link_card_service.rb
@@ -136,14 +136,15 @@ class FetchLinkCardService < BaseService
     detector = CharlockHolmes::EncodingDetector.new
     detector.strip_tags = true
 
-    guess = detector.detect(@html, @html_charset)
-    page  = Nokogiri::HTML(@html, nil, guess&.fetch(:encoding, nil))
+    guess      = detector.detect(@html, @html_charset)
+    page       = Nokogiri::HTML(@html, nil, guess&.fetch(:encoding, nil))
+    player_url = meta_property(page, 'twitter:player')
 
-    if meta_property(page, 'twitter:player')
+    if player_url && !bad_url?(Addressable::URI.parse(player_url))
       @card.type   = :video
       @card.width  = meta_property(page, 'twitter:player:width') || 0
       @card.height = meta_property(page, 'twitter:player:height') || 0
-      @card.html   = content_tag(:iframe, nil, src: meta_property(page, 'twitter:player'),
+      @card.html   = content_tag(:iframe, nil, src: player_url,
                                                width: @card.width,
                                                height: @card.height,
                                                allowtransparency: 'true',