diff --git a/CHANGELOG.md b/CHANGELOG.md
index f05491a0..d8d70375 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 ### 0.13.2 (Next)
 
 * [#226](https://github.com/slack-ruby/slack-ruby-client/pull/226), [#232](https://github.com/slack-ruby/slack-ruby-client/pull/232), [#236](https://github.com/slack-ruby/slack-ruby-client/pull/236), [#234](https://github.com/slack-ruby/slack-ruby-client/pull/234): Added periodic ping that reconnects on failure - [@RodneyU215](https://github.com/RodneyU215), [@dblock](https://github.com/dblock), [@ioquatix](https://github.com/ioquatix).
+* [#242](https://github.com/slack-ruby/slack-ruby-client/pull/242): Added `thread_ts` option to `chat_postEphemeral` - [@dblock](https://github.com/dblock).
+* [#242](https://github.com/slack-ruby/slack-ruby-client/pull/242): Added `apps_uninstall` to Web API - [@dblock](https://github.com/dblock).
 * Your contribution here.
 
 ### 0.13.1 (2018/9/30)
diff --git a/bin/commands.rb b/bin/commands.rb
index b70b4bd8..50ad61ab 100644
--- a/bin/commands.rb
+++ b/bin/commands.rb
@@ -1,6 +1,7 @@
 # This file was auto-generated by lib/tasks/web.rake
 
 require 'commands/api'
+require 'commands/apps'
 require 'commands/apps_permissions'
 require 'commands/apps_permissions_resources'
 require 'commands/apps_permissions_scopes'
diff --git a/bin/commands/apps.rb b/bin/commands/apps.rb
new file mode 100644
index 00000000..3843b973
--- /dev/null
+++ b/bin/commands/apps.rb
@@ -0,0 +1,14 @@
+# This file was auto-generated by lib/tasks/web.rake
+
+desc 'Apps methods.'
+command 'apps' do |g|
+  g.desc 'Uninstalls your app from a workspace.'
+  g.long_desc %( Uninstalls your app from a workspace. )
+  g.command 'uninstall' do |c|
+    c.flag 'client_id', desc: 'Issued when you created your application.'
+    c.flag 'client_secret', desc: 'Issued when you created your application.'
+    c.action do |_global_options, options, _args|
+      puts JSON.dump($client.apps_uninstall(options))
+    end
+  end
+end
diff --git a/bin/commands/chat.rb b/bin/commands/chat.rb
index 97f9eb01..e03529c9 100644
--- a/bin/commands/chat.rb
+++ b/bin/commands/chat.rb
@@ -50,10 +50,11 @@
     c.flag 'channel', desc: 'Channel, private group, or IM channel to send message to. Can be an encoded ID, or a name.'
     c.flag 'text', desc: "Text of the message to send. See below for an explanation of formatting. This field is usually required, unless you're providing only attachments instead."
     c.flag 'user', desc: 'id of the user who will receive the ephemeral message. The user should be in the channel specified by the channel argument.'
-    c.flag 'as_user', desc: 'Pass true to post the message as the authed bot. Defaults to false.'
+    c.flag 'as_user', desc: 'Pass true to post the message as the authed user. Defaults to true if the chat:write:bot scope is not included. Otherwise, defaults to false.'
     c.flag 'attachments', desc: 'A JSON-based array of structured attachments, presented as a URL-encoded string.'
     c.flag 'link_names', desc: 'Find and link channel names and usernames.'
     c.flag 'parse', desc: 'Change how messages are treated. Defaults to none. See below.'
+    c.flag 'thread_ts', desc: "Provide another message's ts value to make this message a reply. Avoid using a reply's ts value; use its parent instead."
     c.action do |_global_options, options, _args|
       puts JSON.dump($client.chat_postEphemeral(options))
     end
diff --git a/bin/commands/files.rb b/bin/commands/files.rb
index 2d824560..3bfb0e90 100644
--- a/bin/commands/files.rb
+++ b/bin/commands/files.rb
@@ -40,17 +40,16 @@
     c.flag 'ts_from', desc: 'Filter files created after this timestamp (inclusive).'
     c.flag 'ts_to', desc: 'Filter files created before this timestamp (inclusive).'
     c.flag 'types', desc: 'Filter files by type:
+* `all` - All files
+* `spaces` - Posts
+* `snippets` - Snippets
+* `images` - Image files
+* `gdocs` - Google docs
+* `zips` - Zip files
+* `pdfs` - PDF files
 
-all - All files
-spaces - Posts
-snippets - Snippets
-images - Image files
-gdocs - Google docs
-zips - Zip files
-pdfs - PDF files
+You can pass multiple values in the types argument, like `types=spaces,snippets`.The default value is `all`, which does not filter the list.
 
-
-You can pass multiple values in the types argument, like types=spaces,snippets.The default value is all, which does not filter the list.
 .'
     c.flag 'user', desc: 'Filter files created by a single user.'
     c.action do |_global_options, options, _args|
diff --git a/bin/commands/reactions.rb b/bin/commands/reactions.rb
index e48bf22e..485efa7c 100644
--- a/bin/commands/reactions.rb
+++ b/bin/commands/reactions.rb
@@ -7,8 +7,8 @@
   g.command 'add' do |c|
     c.flag 'name', desc: 'Reaction (emoji) name.'
     c.flag 'channel', desc: 'Channel where the message to add reaction to was posted.'
-    c.flag 'file', desc: 'File to add reaction to.'
-    c.flag 'file_comment', desc: 'File comment to add reaction to.'
+    c.flag 'file', desc: "File to add reaction to. Now that file threads work the way you'd expect, this argument is deprecated. Specify the timestamp and channel of the message associated with a file instead."
+    c.flag 'file_comment', desc: "File comment to add reaction to. Now that file threads work the way you'd expect, this argument is deprecated. Specify the timestamp and channel of the message associated with a file instead."
     c.flag 'timestamp', desc: 'Timestamp of the message to add reaction to.'
     c.action do |_global_options, options, _args|
       puts JSON.dump($client.reactions_add(options))
diff --git a/lib/slack/web/api/endpoints.rb b/lib/slack/web/api/endpoints.rb
index 2d7b2c81..973f6a9b 100644
--- a/lib/slack/web/api/endpoints.rb
+++ b/lib/slack/web/api/endpoints.rb
@@ -1,6 +1,7 @@
 # This file was auto-generated by lib/tasks/web.rake
 
 require_relative 'endpoints/api'
+require_relative 'endpoints/apps'
 require_relative 'endpoints/apps_permissions'
 require_relative 'endpoints/apps_permissions_resources'
 require_relative 'endpoints/apps_permissions_scopes'
@@ -44,6 +45,7 @@ module Endpoints
         include Slack::Web::Api::Mixins::Groups
 
         include Api
+        include Apps
         include AppsPermissions
         include AppsPermissionsResources
         include AppsPermissionsScopes
diff --git a/lib/slack/web/api/endpoints/apps.rb b/lib/slack/web/api/endpoints/apps.rb
new file mode 100644
index 00000000..0c670b6c
--- /dev/null
+++ b/lib/slack/web/api/endpoints/apps.rb
@@ -0,0 +1,26 @@
+# This file was auto-generated by lib/tasks/web.rake
+
+module Slack
+  module Web
+    module Api
+      module Endpoints
+        module Apps
+          #
+          # Uninstalls your app from a workspace.
+          #
+          # @option options [Object] :client_id
+          #   Issued when you created your application.
+          # @option options [Object] :client_secret
+          #   Issued when you created your application.
+          # @see https://api.slack.com/methods/apps.uninstall
+          # @see https://github.com/slack-ruby/slack-api-ref/blob/master/methods/apps/apps.uninstall.json
+          def apps_uninstall(options = {})
+            throw ArgumentError.new('Required arguments :client_id missing') if options[:client_id].nil?
+            throw ArgumentError.new('Required arguments :client_secret missing') if options[:client_secret].nil?
+            post('apps.uninstall', options)
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/slack/web/api/endpoints/chat.rb b/lib/slack/web/api/endpoints/chat.rb
index 194419eb..9f0ee035 100644
--- a/lib/slack/web/api/endpoints/chat.rb
+++ b/lib/slack/web/api/endpoints/chat.rb
@@ -82,13 +82,15 @@ def chat_meMessage(options = {})
           # @option options [user] :user
           #   id of the user who will receive the ephemeral message. The user should be in the channel specified by the channel argument.
           # @option options [Object] :as_user
-          #   Pass true to post the message as the authed bot. Defaults to false.
+          #   Pass true to post the message as the authed user. Defaults to true if the chat:write:bot scope is not included. Otherwise, defaults to false.
           # @option options [Object] :attachments
           #   A JSON-based array of structured attachments, presented as a URL-encoded string.
           # @option options [Object] :link_names
           #   Find and link channel names and usernames.
           # @option options [Object] :parse
           #   Change how messages are treated. Defaults to none. See below.
+          # @option options [Object] :thread_ts
+          #   Provide another message's ts value to make this message a reply. Avoid using a reply's ts value; use its parent instead.
           # @see https://api.slack.com/methods/chat.postEphemeral
           # @see https://github.com/slack-ruby/slack-api-ref/blob/master/methods/chat/chat.postEphemeral.json
           def chat_postEphemeral(options = {})
diff --git a/lib/slack/web/api/endpoints/files.rb b/lib/slack/web/api/endpoints/files.rb
index fcac78c9..baee9103 100644
--- a/lib/slack/web/api/endpoints/files.rb
+++ b/lib/slack/web/api/endpoints/files.rb
@@ -67,17 +67,16 @@ def files_info(options = {})
           #   Filter files created before this timestamp (inclusive).
           # @option options [Object] :types
           #   Filter files by type:
+          #   * `all` - All files
+          #   * `spaces` - Posts
+          #   * `snippets` - Snippets
+          #   * `images` - Image files
+          #   * `gdocs` - Google docs
+          #   * `zips` - Zip files
+          #   * `pdfs` - PDF files
           #
-          #   all - All files
-          #   spaces - Posts
-          #   snippets - Snippets
-          #   images - Image files
-          #   gdocs - Google docs
-          #   zips - Zip files
-          #   pdfs - PDF files
+          #   You can pass multiple values in the types argument, like `types=spaces,snippets`.The default value is `all`, which does not filter the list.
           #
-          #
-          #   You can pass multiple values in the types argument, like types=spaces,snippets.The default value is all, which does not filter the list.
           #   .
           # @option options [user] :user
           #   Filter files created by a single user.
diff --git a/lib/slack/web/api/endpoints/reactions.rb b/lib/slack/web/api/endpoints/reactions.rb
index 1817dced..e3804108 100644
--- a/lib/slack/web/api/endpoints/reactions.rb
+++ b/lib/slack/web/api/endpoints/reactions.rb
@@ -13,9 +13,9 @@ module Reactions
           # @option options [channel] :channel
           #   Channel where the message to add reaction to was posted.
           # @option options [file] :file
-          #   File to add reaction to.
+          #   File to add reaction to. Now that file threads work the way you'd expect, this argument is deprecated. Specify the timestamp and channel of the message associated with a file instead.
           # @option options [Object] :file_comment
-          #   File comment to add reaction to.
+          #   File comment to add reaction to. Now that file threads work the way you'd expect, this argument is deprecated. Specify the timestamp and channel of the message associated with a file instead.
           # @option options [Object] :timestamp
           #   Timestamp of the message to add reaction to.
           # @see https://api.slack.com/methods/reactions.add
diff --git a/lib/slack/web/api/slack-api-ref b/lib/slack/web/api/slack-api-ref
index 5fbbebd3..2fc7a696 160000
--- a/lib/slack/web/api/slack-api-ref
+++ b/lib/slack/web/api/slack-api-ref
@@ -1 +1 @@
-Subproject commit 5fbbebd33474030ce62b8f0dae8c913ddc24aeed
+Subproject commit 2fc7a6964fe39d04b1fbd96c5373d668e60c76bd
diff --git a/spec/slack/web/api/endpoints/apps_spec.rb b/spec/slack/web/api/endpoints/apps_spec.rb
new file mode 100644
index 00000000..bc065704
--- /dev/null
+++ b/spec/slack/web/api/endpoints/apps_spec.rb
@@ -0,0 +1,15 @@
+# This file was auto-generated by lib/tasks/web.rake
+
+require 'spec_helper'
+
+RSpec.describe Slack::Web::Api::Endpoints::Apps do
+  let(:client) { Slack::Web::Client.new }
+  context 'apps_uninstall' do
+    it 'requires client_id' do
+      expect { client.apps_uninstall(client_secret: 'f25b5ceaf8a3c2a2c4f52bb4f0b0499e') }.to raise_error ArgumentError, /Required arguments :client_id missing/
+    end
+    it 'requires client_secret' do
+      expect { client.apps_uninstall(client_id: '56579136444.26251006572') }.to raise_error ArgumentError, /Required arguments :client_secret missing/
+    end
+  end
+end